@book{UBHD-1038039, author={Hartshorne, Charles}, title={Born to sing}, subtitle={an interpretation and world survey of bird song}, publisher={Indiana University Press}, address={Bloomington}, year={1973}, pages={XVI, 304 S.}, language={eng}, isbn={0-253-10800-4 and 978-0-253-10800-5}, note={Bibliography: p. [256]-272}, library={UB [Signatur: UBN/WT 4530 H335]}, }