TY  - BOOK
AU  - Heley,Delphine
TI  - Seabirds of eastern North Pacific and Arctic waters
SN  - 0-914718-86-X
AV  - QL695 S43
PY  - 1984///
CY  - Seattle, Wash.
PB  - Pacific Search
N1  - Incluye bibliografia
ER  -