Cita APA (7a ed.)

Turk, A. (1974). Environmental science. Saunders.

Cita Chicago Style (17a ed.)

Turk, Amos. Environmental Science. Philadelphia [u.a.]: Saunders, 1974.

Cita MLA (8a ed.)

Turk, Amos. Environmental Science. Saunders, 1974.