APA引文

Sagan, C. (2011). The demon-haunted world: Science as a candle in the dark.

Chicago Style (17th ed.) Citation

Sagan, Carl. The Demon-haunted World: Science as a Candle in the Dark. 2011.

MLA引文

Sagan, Carl. The Demon-haunted World: Science as a Candle in the Dark. 2011.

警告：這些引文格式不一定是100％准確.