RT Book T1 A behavior system: an introduction to behavior theory concerning the individual organism A1 Hull, Clark Leonard 1884-1952 LA English PP Westport, Conn. PB Greenwood Pr. YR 1974 ED Repr. d. Ausg. New Haven, Conn. 1952 UL https://krimdok.uni-tuebingen.de/Record/165202753X SN 0837169550