Gaya APA

Oser, J., Blanchfield, W, C. (1975). The Evolution of economic thought (3rd ed). New York: Harcourt Brace Jovanovich.

Gaya MLA

Oser, Jacob., Blanchfield, William, C.. "The Evolution of economic thought". 3rd ed New York: Harcourt Brace Jovanovich, 1975. Text.