Schwartz, B., & Williams, D. R. (1972). Two different kinds of key peck in the pigeon: Some properties of responses maintained by negative and positive response-reinforcer contingencies.
シカゴスタイル引用形Schwartz, Barry, , David R. Williams. Two Different Kinds of Key Peck in the Pigeon: Some Properties of Responses Maintained By Negative and Positive Response-reinforcer Contingencies. 1972.
MLA引用形式Schwartz, Barry, , David R. Williams. Two Different Kinds of Key Peck in the Pigeon: Some Properties of Responses Maintained By Negative and Positive Response-reinforcer Contingencies. 1972.
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