APA

Samuelson P. A., Nordhaus W. D. & Samuelson P. A. (1992). Macroeconomics. New York: McGraw-Hill.

Chicago

Samuelson Paul Anthony, Nordhaus William D and Samuelson Paul Anthony. 1992. Macroeconomics. New York: McGraw-Hill.

Harvard

Samuelson P. A., Nordhaus W. D. and Samuelson P. A. (1992). Macroeconomics. New York: McGraw-Hill.

MLA

Samuelson Paul Anthony, Nordhaus William D and Samuelson Paul Anthony. Macroeconomics. New York: McGraw-Hill. 1992.