TY  - BOOK
AU  - Peterson,Roger Tory
TI  - The birds / 
U1  - 598.2 
PY  - 1978///
CY  - Alexandria, Va. : 
PB  - Time-Life Books, 
KW  - Birds
N1  -  Includes bibliographical references (p. 186) and index
N2  -  Traces the evolution of birds and discusses the varied sizes, shapes , colors, and habits of some representatives of the over 9,000 species existing today
ER  -