Maina, John N. The Lung-Air Sac System of Birds Development, Structure, and Function / [electronic resource] : by John N. Maina. - 1a ed. - Berlin, Heidelberg : Springer Berlin Heidelberg, 2005. - v.: digital ISBN: 9783540297277 Subjects--Topical Terms: Sacos aéreos (Anatomía de las aves) LC Class. No.: QL855 / M35 2005