Gaya APA

Baumol, W, J. (1986). Economics (macroeconomics) : principles and policy (3rd ed.). San Diego: Harcourt Brace Jovanovich, Publishers.

Gaya MLA

Baumol, William, J.. "Economics (macroeconomics) : principles and policy". 3rd ed. San Diego: Harcourt Brace Jovanovich, Publishers, 1986. Text.