Style de citation APA

Gerhartz, W. (1986). Ullamann's Encyclopedia of Industrial Chemistry (5th ed.). VCH.

Style de citation Chicago

Gerhartz, Wolfgang. Ullamann's Encyclopedia of Industrial Chemistry. 5th ed. New York: VCH, 1986.

Style de citation MLA

Gerhartz, Wolfgang. Ullamann's Encyclopedia of Industrial Chemistry. 5th ed. VCH, 1986.

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