Gaya APA

Baumol, W, J., Blinder, A, S. (2009). Economics: Principles and Policy. Eleventh Edition (Ed.Ke-7). China: South-Western.

Gaya MLA

Baumol, William, J.., Blinder, Alan, S.. "Economics: Principles and Policy. Eleventh Edition". Ed.Ke-7 China: South-Western, 2009. Textbook.