Gaya APA

Steward, R, B, A, K, J, E. (1978). Environmental Law And Policy (2). USA: The Bobbs-Merrill Company,Inc..

Gaya MLA

Steward, Richard, B, And, Krier, James, E. "Environmental Law And Policy". 2 USA: The Bobbs-Merrill Company,Inc., 1978. Text.