APA引文

Krugman P. Paul & Wells R. Robin. (2006). Macroeconomics. New York, Worth Publishers, 2006.

Chicago Style (17th ed.) Citation

Krugman P. Paul and Wells R. Robin. Macroeconomics. New York, Worth Publishers, 2006, 2006.

MLA引文

Krugman P. Paul and Wells R. Robin. Macroeconomics. New York, Worth Publishers, 2006, 2006.

警告：這些引文格式不一定是100％准確.