APA引文

Hardin, G. (1959). Biology: Its human implications 1949 (2nd ed.).

Chicago Edition Citation

Hardin, Garrett. Biology: Its Human Implications 1949. 2nd ed. 1959.

MLA引文

Hardin, Garrett. Biology: Its Human Implications 1949. 2nd ed. 1959.

警告：這些引文格式不一定是100％准確.