APA引文

Schaeffer, F. A., & Koop, C. E. (1980). Whatever happened to the human race? Marshall, Morgan & Scott.

Chicago Style (17th ed.) Citation

Schaeffer, Francis A., and Charles Everett Koop. Whatever Happened to the Human Race? London: Marshall, Morgan & Scott, 1980.

MLA引文

Schaeffer, Francis A., and Charles Everett Koop. Whatever Happened to the Human Race? Marshall, Morgan & Scott, 1980.

警告：這些引文格式不一定是100％准確.