Living on the edge : wetlands and birds in a changing Sahel / Leo Zwarts ... [et al.]. -- Zeist, Netherlands : KNNV Publishing, cop. 2010 - 564 p. il ISBN 978-90-5011-280-2 Subjects--Topical Terms: Aves - Reproducción - Atlas Universal Decimal Class. No.: 598.2:591.543.43(6)