Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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