APA

Axelrod R. S., Vandeveer S. D. & Downie D. L. . (2011). The global environment. Washington D.C: CQ press.

Chicago

Axelrod Regina S, Vandeveer Stacy D and Downie David Leonard. 2011. The global environment. Washington D.C: CQ press.

Harvard

Axelrod R. S., Vandeveer S. D. and Downie D. L. . (2011). The global environment. Washington D.C: CQ press.

MLA

Axelrod Regina S, Vandeveer Stacy D and Downie David Leonard. The global environment. Washington D.C: CQ press. 2011.