Fossey, Dian. frey50 Gorillas in the mist / Dian Fossey. - Boston, Mass. : Houghton Mifflin, 1983. - xviii, 326 p. : ill. ; 21 cm. Includes index. Bibliography: p. [287]-311. ISBN: 0395282179 : $8.95 Subjects--Topical Terms: Gorilla--Behavior.Mammals--Behavior.