APA

Mansfield E., . (1980). Principles of microeconomics. New York: Norton.

Chicago

Mansfield Edwin, . 1980. Principles of microeconomics. New York: Norton.

Harvard

Mansfield E., . (1980). Principles of microeconomics. New York: Norton.

MLA

Mansfield Edwin, . Principles of microeconomics. New York: Norton. 1980.