TY  - BOOK
ED  - International Union for Conservation of Nature and Natural Resources
TI  - Seals: proceedings of a Working Meeting of Seal Specialists on Threatened and Depleted Seals of the World, held under the auspices of the Survival Service Commission of IUCN, 18-19 August 1972 at the University of Guelph, Ontario, Canada 
T2  - IUCN publications New series. Supplementary paper
U1  - 599.7973 23
PY  - 1973///
CY  - Morges, Switzerland
PB  - International Union for Conservation of Nature and Natural Resources
N1  - Incluye referencias bibliográficas
ER  -