"The German chemical industry in the twentieth century / ed. by John E. Lesch, 2000. - . - CORC. - http://corc.oclc.org. - 2002-09-30"@fr . "1987-03-16" . "John E." . . . "Historien des sciences. - En poste : Department of history, University of California, Berkeley (en 2000)" . "VIAF" . "Historien des sciences. - En poste : Department of history, University of California, Berkeley (en 2000)" . . . . "12685570"^^ . "John E. Lesch"@fr . . . . . "Historien des sciences. - En poste : Department of history, University of California, Berkeley (en 2000)"@fr . . "male" . "Lesch" . . . . . . . . . . . "2013-07-30" . . "0000000081673223" . . . "1945"^^ . . . . "John E. Lesch" . . . "2013-07-29"^^ . . .