Skinner, B. F. (1969). Contingencies of reinforcement- a theoretical analysis. Appleton-century-crofts.
Chicago Edition CitationSkinner, B F. Contingencies of Reinforcement- a Theoretical Analysis. New York: Appleton-century-crofts, 1969.
MLA Edition CitationSkinner, B F. Contingencies of Reinforcement- a Theoretical Analysis. Appleton-century-crofts, 1969.
Warning: These citations may not always be 100% accurate.