TY  - BOOK
AU  - Klopfer, Peter H.
TI  - An introduction to animal behavior ; ethology's first century
U1  - 591.51 
PY  - 1974///
CY  - Englewood Cliffs, N. J.
PB  - Prentice-Hall
KW  - Animales
KW  - Habitos y conducta
ER  -