APA引文

Southard, H. (1971). Sex before twenty: New answers for young people (Rev. ed.). Dutton.

芝加哥风格引文

Southard, Helen. Sex Before Twenty: New Answers for Young People. Rev. ed. New York: Dutton, 1971.

MLA引文

Southard, Helen. Sex Before Twenty: New Answers for Young People. Rev. ed. Dutton, 1971.

警告:这些引文格式不一定是100%准确.