Greylag goose (Simple English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Greylag goose" in Simple English language version.

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archive.org

Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 48. ISBN 978-1-4081-2501-4.

doi.org

dx.doi.org

BirdLife International. (2016). Anser anser. The IUCN Red List of Threatened Species doi:10.2305/IUCN.UK.2016-3.RLTS.T22679889A85975013.en