Prochnow, Herbert V. The public speakers source book / Herbert V. Prochnow and Herbert V. Prochnow - London : Thorsons, c1977. - ix, 548 p. ; 20 cm. - Thorsons business seroes . ISBN: 0722529899 LCCN: Subjects--Topical Terms: English languagesCommunicationVerbal communication LC Class. No.: PN6081 / .P72 1977