Gaya APA

Wentz, C, A. (1989). Hazardous waste management / Charles A. Wentz (Cet.1). New York: McGraw-Hill Book Company.

Gaya MLA

Wentz, Charles, A.. "Hazardous waste management / Charles A. Wentz". Cet.1 New York: McGraw-Hill Book Company, 1989. Textbook.