Παραπομπή APA

Raven, P. H., & Berg, L. R. (2004). Environment (4th ed.). John Wiley & Sons.

Παραπομπή Chicago Style

Raven, Peter H., και Linda R. Berg. Environment. 4th ed. John Wiley & Sons, 2004.

Παραπομπή MLA

Raven, Peter H., και Linda R. Berg. Environment. 4th ed. John Wiley & Sons, 2004.