Gaya APA

Lim, C, L, G, J, ;, H, C. (1980). Biological wastewater treatment: theory and applications . New York: MARCEL DEKKER.

Gaya MLA

Lim, C.P., Leslie, Grady,, Jr., ;, Hanry, C.. "Biological wastewater treatment: theory and applications". New York: MARCEL DEKKER, 1980. Text.