Citazione APA

Poehls, D., & Smith, G. J. (2009). Encyclopedic dictionary of Hydrogeology. Elsevier.

Stile di citazione Chicago

Poehls, D.J, e Gregory J. Smith. Encyclopedic Dictionary of Hydrogeology. Oxford: Elsevier, 2009.

Citazione MLA

Poehls, D.J, e Gregory J. Smith. Encyclopedic Dictionary of Hydrogeology. Elsevier, 2009.