MLA

Wilden, Anthony. System and Structure : Essays In Communication and Exchange. 2nd ed. New York: Tavistock, 1980.

APA

Wilden, A. (1980). System and structure : essays in communication and exchange. 2nd ed. New York: Tavistock.

Chicago

Wilden, Anthony, System and Structure: Essays In Communication and Exchange. 2nd ed. New York: Tavistock, 1980.