Jefferson, T.A.; Leatherwood, S.; Webber, M.A. (1993). Marine mammals of the world. FAO Species identification guide. FAO: Rome, Italy. ISBN 92-5-103292-0. VIII, 320 pp.
58
Jefferson, T.A.; Leatherwood, S.; Webber, M.A.
1993
Marine mammals of the world
FAO Species identification guide
FAO: Rome, Italy. ISBN 92-5-103292-0. VIII, 320 pp.