![](/img/cover-not-exists.png)
Effect of Changing Force Contingency Schedules upon Duration of Response
Hingtgen, Joseph N., Schaefer, Halmuth H.Volume:
9
Language:
english
Journal:
Psychological Reports
DOI:
10.2466/pr0.1961.9.1.191
Date:
August, 1961
File:
PDF, 267 KB
english, 1961