TY  - BOOK
AU  - Lack,David
TI  - Ecological isolation in birds
SN  - 0632068701
AV  - QH401 .L32 1971b
U1  - 598.2/5/22 
PY  - 1971///]
CY  - Oxford [Eng.]
PB  - Blackwell Scientific Publications
KW  - Bird populations
KW  - Isolating mechanisms
N1  - Bibliography: p. 357-374
ER  -