APA

Mansfield E., . (1974). Principles of macroeconomics. New York: Norton.

Chicago

Mansfield Edwin, . 1974. Principles of macroeconomics. New York: Norton.

Harvard

Mansfield E., . (1974). Principles of macroeconomics. New York: Norton.

MLA

Mansfield Edwin, . Principles of macroeconomics. New York: Norton. 1974.