"Phosphorus." . . "Phosphorus" . "Phosphore Congrès." . . "phosphore [congrès]" . "Environment Congresses." . . "Environment congresses." . "Ciba Foundation (London). Symposium" . . "Ciba Foundation Symposium on the Eoonomy and Chemistry of Phophorus (1977 : London)" . . . "Phosphorus Environmental aspects Congresses." . . "Phosphorus, Environmental aspects, Congresses." . "Symposium on the Economy and Chemistry of Phosphorus (1977 : Londres)" . . . "Symposium on the Economy and Chemistry of Phosphorus (1977 ; Londyn)." . . . "Nao metais e seus compostos (quimica)" . . "Congressos i conferències" . . "Symposium on the Economy and Chemistry of Phosphorus (1977 : London)" . . . "Symposium on the Economy and Chemistry of Phosphorus: 1977 : London)" . "Symposium on \"The Economy and Chemistry of Phosphorus\" (1977 : London)" . . . "Medi ambient" . . "Phosphorus Environmental aspects." . . "Phosphorus Environmental aspects" . "SCIENCE Global Warming & Climate Change." . . "Phosphore Aspect de l'environnement Congrès." . . "Symposium on the Economy and Chemistry of Phosphorus (1977 : London, England)" . . . "Poluicao ambiental." . . "Biological chemistry, Congresses." . . "Fòsfor" . . "Ciba Foundation." . . "Environment." . . "Phosphorus Congresses." . . "Phosphorus congresses." . "Londres 1978." . . "Electronic books." . . "Symposium on the Economy and Chemistry of Phosphorus (1977.09.13-15 London)" . . . "Phosphorus in the environment : its chemistry and biochemistry : [London, 13-15 sept. 1977]" . . "Phosphorus in the environment : its chemistry and biochemistry : [symposium on the economy and chemistry of phosphorus, held at the Ciba Foundation, London, 13-15 Sept., 1977]" . . "Livres électroniques" . . . . . . . "Electronic books"@en . . "Electronic books" . "Phosphorus in the environment : its chemistry and biochemistry : [proceedings of the Symposium on the Economy and Chemistry of Phosphorus, held at the Ciba Foundation, London, 13-15th Sept. 1977]"@en . . . . . . . "Conference proceedings" . "Conference proceedings"@en . . "Phosphorus in the environment, its chemistry and biochemistry"@en . "Phosphorus in the environment: its chemistry and biochemistry ; [Symposium on The Economy and Chemistry of Phosphorus held at the Ciba Foundation, London, 13-15th September 1977]" . "Phosphorus in the environment, its chemistry and biochemistry" . . . . . . . . "Phosphorus in the environment : its chemistry and biochemistry"@en . "Phosphorus in the environment : its chemistry and biochemistry" . . . . . . . . . . . . . . "Conference papers and proceedings" . . . "Conference papers and proceedings"@en . . . . . . . . "ECONOMY AND CHEMISTRY of PHOSPHORUS" . . . . . . . . . . . . . "Congresses" . "Phosphorus in the Environment Its Chemistry and Biochemistry"@en . . . "Phosphorus in the environment : its chemistry and biochemistry : [held at the Ciba Foundation, London, 13-15th September, 1977]" . . . . . . . . "Phosphorus in the environment its chemistry and biochemistry" . "Phosphorus in the environment : its chemistry and biochemistry : [Ciba Foundation symposium on the economy and chemistry of phosphorus, 1977 in London]" . . . . "Symposium on the Economy and Chemistry of Phosphorus$ (1977 : Londres)" . . "Environmental chemistry, Congresses." . . "Ecologia." . . "Symposium on the Economy and Chemistry of Phosporus, Londres, Angleterre, 1977." . . .