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
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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
（IUCN publications, New series. Supplementary paper ; no. 39）
International Union for Conservation of Nature and Natural Resources, 1973
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注記
Held during the Symposium on the Biology of the Seal, Aug. 14-17, 1972
Includes bibliographical references