Hull, Clark L. , 1884-1952 A behavior system : an introduction to behavior theory concerning the individual organism / Clark L. Hull - London : New Haven, c1952 - 372 p. : ill. ; 24 cm. Includes index Glossary : p.356-360 ISBN: USD 6.00 Subjects--Topical Terms: PsychophysiologyPsychology, ComparativeAnimal intelligence Dewey Class. No.: 150.19