Gaya APA

AMOS, J., SERI, I, J, I, S, P, I. (2001). Limbah dan Daur Ulang . London: Watts books.

Gaya MLA

AMOS, JANINE., SERI, I., J, II., SECITI, PATRICIA, III.. "Limbah dan Daur Ulang". London: Watts books, 2001. Text.