Koelz, W., 1939. "New birds from Asia, mainly from India". Proceedings of the Biological Society of Washington 52:p. 78. Gearchiveerd op 27 oktober 2022.
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Koelz, W., 1939. "New birds from Asia, mainly from India". Proceedings of the Biological Society of Washington 52:p. 78. Gearchiveerd op 27 oktober 2022.