APA引文

James F Ragan & Lloyd B Thomas. (1990). Principles of Macroeconomics. Harcourt Brace Jovanovich.

Chicago Edition Citation

James F Ragan and Lloyd B Thomas. Principles of Macroeconomics. San Diego: Harcourt Brace Jovanovich, 1990.

MLA引文

James F Ragan and Lloyd B Thomas. Principles of Macroeconomics. Harcourt Brace Jovanovich, 1990.

警告：這些引文格式不一定是100％准確.