APA

Mansfield E., .Study guide for principles of microeconomics. New York: W.W. Norton & Co.

Chicago

Mansfield Edwin, .Study guide for principles of microeconomics. New York: W.W. Norton & Co.

Harvard

Mansfield E., .Study guide for principles of microeconomics. New York: W.W. Norton & Co.

MLA

Mansfield Edwin, .New York: W.W. Norton & Co. .