APA引文

Cahn, J. (2011). The harbinger: The ancient mystery that holds the secret of america's future.

Chicago Style (17th ed.) Citation

Cahn, Jonathan. The Harbinger: The Ancient Mystery That Holds the Secret of America's Future. 2011.

MLA引文

Cahn, Jonathan. The Harbinger: The Ancient Mystery That Holds the Secret of America's Future. 2011.

警告：這些引文格式不一定是100％准確.