"Química técnica PUBLICACIONES PERIODICAS." . . "Chemische industrie." . . . . . "Chemical and engineering news" . . . . . . "C and E news"@en . "C and E news" . "Proceedings of the American Chemical Society" . . "Chemical & engineering news : news edition of the American Chemical Society" . "Chemical & engineering news news edition of the American Chemical Society" . . . "Electronic journals"@en . "Chemical and engineering news : \"news edition\" of the American Chemical Society"@en . "Chemical & engineering news"@en . . . . . "C & E news"@en . "C & E news" . . . "Periodicals"@en . . "C & EN"@en . . "C&EN"@en . "C&EN" . . "Chemical Engineering Periodicals." . . "Chimie Périodiques." . . "Ingeniería química PUBLICACIONES PERIODICAS." . . . . "Chemische technologie." . . "CHEMICAL ENGINEERING" . .