TURK, J., TURK, A., & ARMS, K. (1984). Environmental science.-- Ed. 3. Saunders College Pub.

TURK, Jonathan, Amos TURK, and Karen ARMS. Environmental Science.-- Ed. 3. Philadelphia: Saunders College Pub, 1984.

TURK, Jonathan, et al. Environmental Science.-- Ed. 3. Saunders College Pub, 1984.