APA引文

Williams, B. A. (1991). Choice as a function of local versus molar reinforcement contingencies.

Citação norma Chicago

Williams, B A. Choice As a Function of Local Versus Molar Reinforcement Contingencies. 1991.

MLA引文

Williams, B A. Choice As a Function of Local Versus Molar Reinforcement Contingencies. 1991.

警告：這些引文格式不一定是100％准確.