Adler, Ronald B. Confidence in communication : a guide to assertive and social skills / byRonald B. Adler. - New York : Holt rinehart and winston, c1977. - xii, 334p. ill. ISBN: 0030166969 Subjects--Topical Terms: Assertiveness (pyschology)Interpersonal communication. LC Class. No.: BF575 / .A85A3