Watson, David L. Self directed behavior : self modification for personal adjustment / David L Watson and Roland G Tharp. - California : A division of wodsworth publishing company, c 1972. - xiv, 264 p. : ill. ; 23 cm. Includes index. Bibliography : p. 251-58 314 314 ISBN: 0-8185-0035-2 Subjects--Topical Terms: Behavior modification. Dewey Class. No.: 150 / W332s