APA (7th ed.) Citation

Heyne, P. T. (1973). The economic way of thinking. Science Research Assoc.

Chicago Style (17th ed.) Citation

Heyne, Paul T. The Economic Way of Thinking. Chicago: Science Research Assoc, 1973.

MLA (9th ed.) Citation

Heyne, Paul T. The Economic Way of Thinking. Science Research Assoc, 1973.