APA استشهاد

Smith, P. 1. (1971). Think tanks and problem solving. Business Books.

استشهاد بنمط شيكاغو

Smith, Paul 1.Slee. Think Tanks and Problem Solving. London: Business Books, 1971.

MLA استشهاد

Smith, Paul 1.Slee. Think Tanks and Problem Solving. Business Books, 1971.