TY  - BOOK
AU  - Feduccia,Alan
TI  - The age of birds
SN  - 0674009754
PY  - 1980///
CY  - Cambridge, Mass.
PB  - Harvard University Press
KW  - Birds
KW  - Evolutions
KW  - Classification
KW  - Birds, Fossil
N1  - Bibliography: p.183-187
ER  -