회색머리작은비둘기 (Korean Wikipedia)

Analysis of information sources in references of the Wikipedia article "회색머리작은비둘기" in Korean language version.

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archive.org

Stiles, F. Gary; Gardner, Alexander F. Skutch ; plates by Dana (1989). 《A guide to the birds of Costa Rica》. Ithaca, N.Y.: Comstock. ISBN 0-8014-9600-4. 2018년 5월 1일에 확인함.