Gaya APA

Velde, B., Meunier, A. (2008). The Origin of Clay Minerals in Soils and Wheatered Rocks (1). Berlin: Springer.

Gaya MLA

Velde, Bruce., Meunier, Alain. "The Origin of Clay Minerals in Soils and Wheatered Rocks". 1 Berlin: Springer, 2008. Text.