Gaya APA

Turk, Jonathan, Turk, Amos. (1983). Enviromental science (3). Amerika Serikat: Saunders Company.

Gaya Chicago

Turk, Jonathan, Turk, Amos. Enviromental science. 3 Amerika Serikat: Saunders Company, 1983. Text.

Gaya MLA

Turk, Jonathan, Turk, Amos. Enviromental science. 3 Amerika Serikat: Saunders Company, 1983. Text.

Gaya Turabian

Turk, Jonathan, Turk, Amos. Enviromental science. 3 Amerika Serikat: Saunders Company, 1983. Print.