APA-referens

Ravindra Singh. (2012). Encyclopaedia of geomorphology and hydrogeomorphology: Fundamentals, applications and techniques- 4 vol. NYX academic LLC.

Chicago-stil citat

Ravindra Singh. Encyclopaedia of Geomorphology and Hydrogeomorphology: Fundamentals, Applications and Techniques- 4 Vol. USA: NYX academic LLC, 2012.

MLA-referens

Ravindra Singh. Encyclopaedia of Geomorphology and Hydrogeomorphology: Fundamentals, Applications and Techniques- 4 Vol. NYX academic LLC, 2012.

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