Gaya APA

Delong, J, B., Olney, M, L. (2006). Macroeconomics Ed.2 (Second Edition). Boston, Massachusetts: McGraw-Hill Irwin.

Gaya MLA

Delong, J., Bradford., Olney, Martha, L.. "Macroeconomics Ed.2". Second Edition Boston, Massachusetts: McGraw-Hill Irwin, 2006. Text.