Foreword to Schedules of reinforcement. 1957.
Morse
W H
WH
Harvard Medical School, USA.
Dews
P B
PB
D000818:Animals; D010856:Columbidae; D049673:History, 20th Century; D011589:Psychology, Experimental / Q000266:history*; D012055:Reinforcement Schedule; D014481:United States