Gaya APA

Holmes, G, S, B, R, (. (1993). Handbook of Environmental Management and Technology . United States of America: John Wiley & Sons Ltd..

Gaya MLA

Holmes, Gwendolyn,, Singh,, Ben, Ramnarine, (a.o). "Handbook of Environmental Management and Technology". United States of America: John Wiley & Sons Ltd., 1993. Text.