Gaya APA

MILLER, G, T., SPOOLMAN, S, E. (2009). Essentials of ecology (ed.6). Australia: Brooks/cole cengange.learning.

Gaya MLA

MILLER, G., Tyler., SPOOLMAN, Scott, E.. "Essentials of ecology". ed.6 Australia: Brooks/cole cengange.learning, 2009. Buku.