APA引文

Seth, M. (1973). Principles of economics (9th.). Lakshmi narain A.

Chicago Style (17th ed.) Citation

Seth, M. Principles of Economics. 9th. NULL: Lakshmi narain A, 1973.

MLA引文

Seth, M. Principles of Economics. 9th. Lakshmi narain A, 1973.

警告：這些引文格式不一定是100％准確.