International Conference on Bear Research and Management, (2nd :1970 : Calgary, Alberta, Canada). (1972). Bears: Their biology and management a selection of papers and dicussion from the second International Conference on Bear Resaerch and Management. IUCN.
Style de citation Chicago (17e éd.)International Conference on Bear Research and Management, (2nd :1970 : Calgary, Alberta, Canada). Bears: Their Biology and Management a Selection of Papers and Dicussion from the Second International Conference on Bear Resaerch and Management. Morges: IUCN, 1972.
Style de citation MLA (9e éd.)International Conference on Bear Research and Management, (2nd :1970 : Calgary, Alberta, Canada). Bears: Their Biology and Management a Selection of Papers and Dicussion from the Second International Conference on Bear Resaerch and Management. IUCN, 1972.