Não informado. (1978). German chemical engineering. Verlag Chemie.
Style de citation Chicago (17e éd.)Não informado. German Chemical Engineering. Weinheim, Alemanha: Verlag Chemie, 1978.
Style de citation MLA (8e éd.)Não informado. German Chemical Engineering. Verlag Chemie, 1978.
Attention : ces citations peuvent ne pas être correctes à 100%.