Alström, Per 1961-
Pipits and Wagtails of Europe, Asia and North America : Identification and Systematics / Per Alström and Kister Mild. -- London : Christopher Helm, 2004 - 496 p. il.
ISBN 978-0713658347
Alondras
Lavanderas (aves) - Asia
Lavanderas (aves) - Europa
Lavanderas (aves) - Norte América
598.285(4+5+61)
Pipits and Wagtails of Europe, Asia and North America : Identification and Systematics / Per Alström and Kister Mild. -- London : Christopher Helm, 2004 - 496 p. il.
ISBN 978-0713658347
Alondras
Lavanderas (aves) - Asia
Lavanderas (aves) - Europa
Lavanderas (aves) - Norte América
598.285(4+5+61)