Style de citation APA (7e éd.)

Warfield, J. N. (1976). Societal systems: Planning, policy and complexity. ohn Wiley & Sons.

Style de citation Chicago (17e éd.)

Warfield, John N. Societal Systems: Planning, Policy and Complexity. New York ; London ; Sydney ; Toronto: ohn Wiley & Sons, 1976.

Style de citation MLA (9e éd.)

Warfield, John N. Societal Systems: Planning, Policy and Complexity. ohn Wiley & Sons, 1976.