APA-referens

Gray, M. (2004). Geodiversity: Valuing and conserving abiotic nature. England: John Wiley & Sons, Ltd.

Chicago-stil citat

Gray, Murray. Geodiversity: Valuing and Conserving Abiotic Nature. England: John Wiley & Sons, Ltd, 2004.

MLA-referens

Gray, Murray. Geodiversity: Valuing and Conserving Abiotic Nature. England: John Wiley & Sons, Ltd, 2004.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.