APA引文

Arnold, R. A., & Roger A Arnold. (2008). Economics. Cincinnati, Ohio: South-Western College Pub.

Trích dẫn kiểu Chicago

Arnold, Roger A., và Roger A Arnold. Economics. Cincinnati, Ohio: South-Western College Pub, 2008.

MLA引文

Arnold, Roger A., và Roger A Arnold. Economics. Cincinnati, Ohio: South-Western College Pub, 2008.

警告：这些引文格式不一定是100％准确.