APA引文

Peterson, W. L. (1990). Principles of economics: Micro (Ed.7.).

Chicago Edition Citation

Peterson, Willis L. Principles of Economics: Micro. Ed.7. New Delhi, Universal Book Stall, 1990.

MLA引文

Peterson, Willis L. Principles of Economics: Micro. Ed.7. 1990.

警告：這些引文格式不一定是100％准確.