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Positive reinforcement of litter removal in the natural environment12
Powers, Richard B., Osborne, J. Grayson, Anderson, Emmett G.Volume:
6
Year:
1973
Language:
english
Journal:
Journal of Applied Behavior Analysis
DOI:
10.1901/jaba.1973.6-579
File:
PDF, 1.35 MB
english, 1973