Mass Extinction

MLA

Elewa, Ashraf MT, and Ashraf M. T Elewa. Mass Extinction. Springer Berlin Heidelberg, 2008.

APA

Elewa, A. MT, & Elewa, A. M. T. (2008). Mass Extinction. Springer Berlin Heidelberg.

Chicago

Elewa, Ashraf MT, and Ashraf M. T Elewa. Mass Extinction. : Springer Berlin Heidelberg, 2008.