ג'ון אדוארד גריי (Hebrew Wikipedia)

Analysis of information sources in references of the Wikipedia article "ג'ון אדוארד גריי" in Hebrew language version.

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books.google.com

Kenney, Robert D. (2009). Perrin, William F.; Wursig, Bernd; Thewissen, J. G. M (eds.). Encyclopedia of Marine Mammals (2nd ed.). Burlington, Mass.: Academic Press. p. 963. ISBN 978-0-08-091993-5.
Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: JHU Press. pp. 106–106. ISBN 978-1-4214-0135-5.

"The History of Stamp Collecting Part 11 – Dr. John Edward Gray". Freestampmagazine - Stamp Collecting Blog (באנגלית אמריקאית). 15 במרץ 2016. נבדק ב-15 בפברואר 2020. {{cite web}}: (עזרה)

Uetz, Peter (2010). "The original descriptions of reptiles" (PDF). Zootaxa. 2334: 59–68.