APA引文

(1980). Recommended dietary allowances. Washington DC: National Academy of Sciences.

Trích dẫn kiểu Chicago

Recommended Dietary Allowances. Washington DC: National Academy of Sciences, 1980.

MLA引文

Recommended Dietary Allowances. Washington DC: National Academy of Sciences, 1980.

警告：這些引文格式不一定是100％准確.