APA引文

Peterson, W. L. (1986). Principles of ecconomics. Universal Book Stall.

Chicago Edition Citation

Peterson, Willis L. Principles of Ecconomics. New Delhi: Universal Book Stall, 1986.

MLA引文

Peterson, Willis L. Principles of Ecconomics. Universal Book Stall, 1986.

警告：這些引文格式不一定是100％准確.