TY  - SER
AU  - Lettevall, E., Richter, C., Jaquet, N., Slooten, E., Dawson, S., Whitehead, H., Cristal, J., McCall Howard, P.
TI  - Social structure and residency in aggregations of male sperm whales
U1  - 599.547599.547 
PY  - 2002///
KW  - Social structure and residency in aggregations of male sperm whales
KW  - Whales--Galápagos
KW  - Ballenas--Galápagos
ER  -