https://catalogue-scientifique.canada.ca/record=3851470~S6*frc
National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Northwest and Alaska Fisheries Center, National Marine Mammal Laboratory ; Springfield, Va, 1984
A survey of fur seals in Alaska and in California according to populations parameters: 1) age and sex composition of seals harvested 2) number and sex of seals...
Livre