TY  - BOOK
T1  - Helping and communal breeding in birds :ecology and evolution /
DA  - c1987.
CY  - Princeton, N.J. :
AU  - Brown, Jerram L.
CN  - QL698.3 .B76 1987
CN  - QL698.3
PB  - Princeton University Press,
PP  - Princeton, N.J. :
PY  - c1987.
N1  - Includes indexes.
ID  - 118934
KW  - Birds
KW  - Birds
KW  - Birds
KW  - Birds
SN  - 0691084572 (alk. paper) :
SN  - 0691084580 (pbk.) :
TI  - Helping and communal breeding in birds :ecology and evolution /
ER  -