Gaya APA

ULLMANN, F. (1988). Ullmann's Encyclopedia of Industrial Chemistry Fritz Ullmann and Wolfgang Gerhartz (Fifth, Completely Revised edition). : Weinheim VCH Verlagsgesellschaft mbH .

Gaya MLA

ULLMANN, Fritz. "Ullmann's Encyclopedia of Industrial Chemistry Fritz Ullmann and Wolfgang Gerhartz". Fifth, Completely Revised edition : Weinheim VCH Verlagsgesellschaft mbH , 1988. FAKULTAS TEKNIK.