shaping top performance- -positively Spector, Morgan. creator Jacques-Pierre Collection text Waltham, MA Sunshine Books c1999 1st ed. monographic eng vii, 267 p. : ill ; 28 cm. by Morgan Spector. Includes bibliographical references (p. 251) and index. Dogs Training Clicker training (Animal training) 0962401781 97067794 DLC 150930 20190501183622.0 41355153