Gaya APA

, P, E, R., Feng, , L, G, H. (2011). Risks of Hazardous Wastes (1). MASSACHUSETTS :: Elsevier,.

Gaya MLA

, Paul, E., Rosenfeld., Feng, , Lydia, G., H.. "Risks of Hazardous Wastes". 1 MASSACHUSETTS :: Elsevier,, 2011. Monograf.