TY  - BOOK
AU  - Wallace, George John.
TI  - An introduction to ornithology
U1  - 598.2 
PY  - 1963///
CY  -  New York : 
PB  - Macmillan
KW  -  Ornithology.
KW  -   Birds.
KW  -  Aves (Biologia)
N1  - Includes bibliographical references and index
ER  -