RICHEY CHERYL A. [współaut .] '543,310 MORTON JUDY C., RICHEY CHERYL A., KELLETT MICHELE Building assertive skills : a practical guide to professional development for allied, dental health providers / Judy G. Morton, Cheryl A. Richey, Michele Kellett — St. Louis ; Toronto ; London : the C. V Mosby Co., 1981. - XII, 283 s. : wykr. ; 24 cm. ISBN 0-8016-3520-9