Pikiturpiaali (Finnish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pikiturpiaali" in Finnish language version.

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google.fi

Robert S. Ridgely, John A. Gwynne, Guy Tudor, Martha Argel: Wildlife Conservation Society Birds of Brazil, s. 394. Cornell University Press, 2016. ISBN 978-0-8014-7646-4 Kirja Googlen teoshaussa Viitattu 6.3.2024. (englanniksi)
Alexander Frank Skutch: Orioles, Blackbirds, and Their Kin, s. 85–87. University of Arizona Press, 1996. ISBN 0-8165-1584-0 Kirja Googlen teoshaussa Viitattu 6.3.2024. (englanniksi)
Robert S. Ridgely, Guy Tudor: The Birds of South America: The oscine passerines, s. 350. University of Texas Press, 1989. ISBN 0-292-70756-8 Kirja Googlen teoshaussa Viitattu 6.3.2024. (englanniksi)

Integrated Taxonomic Information System (ITIS): Gnorimopsar chopi (TSN 560271) itis.gov. Viitattu 6.3.2024. (englanniksi)

BirdLife International: Gnorimopsar chopi IUCN Red List of Threatened Species. Version 2023-1. 2016. International Union for Conservation of Nature, IUCN, Iucnredlist.org. Viitattu 6.3.2024. (englanniksi)