TY  - BOOK
AU  - Perry,Richard
TI  - At the turn of the tide: a book of wild birds
SN  - 0800805062
AV  - QL690.G7 P39 1972
U1  - 598.2 19
PY  - 1943///
CY  - Londres
KW  - Water birds
KW  - England
KW  - Behavior
ER  -