TY  - BOOK
AU  - Murton, R. K.
AU  - Westwood, N. J.
TI  - Avian breeding cycles
U1  - 598.216 MUR 
PY  - 1977///
CY  - Oxford [Eng.]
PB  - Clarendon Press
KW  - Birds
KW  - Reproduction
KW  - Biological rythms
N1  - Includes indexes; Bibliography: p. [499]-568
ER  -