. . "1891-05-28" . . "Martin Duncan" . . . "P. M." . . . "1821-04-20" . "DUNCAN" . "martin" . "ピーター・マーティン・ダンカン" . "DUNCAN, Peter Martin, and SLADEN (W. Percy)" . "P Martin Duncan" . . . "Peter Martin" . "P. M. Duncan" . "P.Martin Duncan" . "M." . . "P. Martin Duncan"@en-AU . "P" . "Peter Martin Duncan" . "Duncan" . "Martin Duncan" . "Duncan, P. Martin (Peter Martin)" . "پیتر مارتین دانکن" . "P.Martin" . "and MILLARD (William) Peter Martin DUNCAN" . . "Peter" . "P. M. Duncan" . . "Peter Martin DUNCAN" . "English palaeontologist" . "Martin" . . "P. Martin Duncan" . "P. martin Duncan" . . "Duncan"@fr-FR . "and SLADEN (W. Percy) Peter Martin DUNCAN" . "DUNCAN, Peter Martin, and MILLARD (William)" . "Peter Martin Duncan"@en . "P. Martin" . . "Martin" . . "P." .