Parsons, Edward C. M. An introduction to marine mammal biology and conservation / E.C.M. Parsons. - Burlington, Mass. : Jones & Bartlett Learning, 2013. - xviii, 345 p. : ill., maps ; 28 cm. ISBN: 9780763783440 (pbk. : alk. paper) RM393.95 Subjects--Topical Terms: Marine mammals.Marine mammals--Conservation.