Gray, J. M. (2013). Geodiversity: Valuing and conserving abiotic nature (2η έκδ.). Wiley Blackwell.
Chicago Style (17th ed.) CitationGray, J. M. Geodiversity: Valuing and Conserving Abiotic Nature. 2η έκδ. Chichester, West Sussex, UK: Wiley Blackwell, 2013.
MLA (9th ed.) CitationGray, J. M. Geodiversity: Valuing and Conserving Abiotic Nature. 2η έκδ. Wiley Blackwell, 2013.
Warning: These citations may not always be 100% accurate.