APA引文

Hancock, G. (2019). America before: The key to Earth's lost civilization (First edition.). St. Martin's Press.

Chicago Style (17th ed.) Citation

Hancock, Graham. America Before: The Key to Earth's Lost Civilization. First edition. New York: St. Martin's Press, 2019.

MLA引文

Hancock, Graham. America Before: The Key to Earth's Lost Civilization. First edition. St. Martin's Press, 2019.

警告：這些引文格式不一定是100％准確.