APA引文

KEETON, W. T. (1980). Biological science.-- ed.3. W.W Norton and co.

Chicago Style (17th ed.) Citation

KEETON, William T. Biological Science.-- Ed.3. New York: W.W Norton and co, 1980.

MLA引文

KEETON, William T. Biological Science.-- Ed.3. W.W Norton and co, 1980.

警告：這些引文格式不一定是100％准確.