How Likely is Extraterrestrial Life?

MLA

Halley, J. Woods. How Likely Is Extraterrestrial Life?. Springer Berlin Heidelberg, 2012.

APA

Halley, J. Woods. (2012). How Likely is Extraterrestrial Life?. Springer Berlin Heidelberg.

Chicago

Halley, J. Woods How Likely Is Extraterrestrial Life?. : Springer Berlin Heidelberg, 2012.