Volhard, Joachim. Open and utility training : the motivational method / Jack and Wendy Volhard. - New York : Toronto : New York : Howell Book House ; Maxwell Macmillan Canada ; Maxwell Macmillan International, c1992. - xiv, 175 p. : ill ; 25 cm. Includes bibliographical references (p. 173-175) ISBN: 0876057555 Subjects--Topical Terms: Dogs--Obedience trials--Open classes.Dogs--Obedience trials--Utility classes.Dogs--Training.Dogs--Behavior. LC Class. No.: SF425.7 / .V65 1991 Dewey Class. No.: 636.7/088/7