APA引文

National Geographic Channel (Television station : Washington, D.C.), BBC Worldwide Americas, Inc, & Stewart, I. S. (2008). Earth: The biography. Distributed by BBC Worldwide Americas ; Distributed by Warner Home Video.

Chicago Style (17th ed.) Citation

National Geographic Channel (Television station : Washington, D.C.), Inc BBC Worldwide Americas, and Iain S. Stewart. Earth: The Biography. [New York, NY] : Burbank, CA: Distributed by BBC Worldwide Americas ; Distributed by Warner Home Video, 2008.

MLA引文

National Geographic Channel (Television station : Washington, D.C.), et al. Earth: The Biography. Distributed by BBC Worldwide Americas ; Distributed by Warner Home Video, 2008.

警告：這些引文格式不一定是100％准確.