TY  - BOOK
AU  - Simpson,George Gaylord
TI  - Penguins: : past and present, here and there
SN  - 0-300-01969-6
U1  - 598.441 
PY  - 1976///
CY  - New Haven and London
PB  - : Yale University
KW  - AVES
KW  - pingüinos (penguins)
ER  -