Grenard, Steve. Introduction to respiratory therapy / Steve Grenard, Norman Traverse. - 3rd ed. - Chicago : Year Book Medical Publishers, c1981. - x, 267 p. : ill. 22 cm. Includes index. ISBN: 081513973X : Subjects--Topical Terms: Respiratory organs.Respiratory therapyRespiratory therapy. LC Class. No.: RM161 / .G733 1981 National Library of Medicine Call No.: WB 18 / .G74 1981