Gaya APA

Environmental labelling schemes and ecological product standards for idn export products / edited by Neitzel, Herald: Landmann, Ute. (1994). : Berlin, PEM Planungs-Engineering-Management GMBH Dusseldorf/Germany.

Gaya MLA

Environmental labelling schemes and ecological product standards for idn export products / edited by Neitzel, Herald: Landmann, Ute. . : Berlin, PEM Planungs-Engineering-Management GMBH Dusseldorf/Germany, 1994. Text.