Rijn, P. P. v., Cofer, C. N., & Hermanson, R. H. (1975). Programmed learning aid for thinking and conceptual behavior. Learning Systems Company.
芝加哥风格引文Rijn, Paul P. van, Charles N. Cofer, 与 Roger H. Hermanson. Programmed Learning Aid for Thinking and Conceptual Behavior. Homewod, Illinois: Learning Systems Company, 1975.
MLA引文Rijn, Paul P. van, et al. Programmed Learning Aid for Thinking and Conceptual Behavior. Learning Systems Company, 1975.
警告:这些引文格式不一定是100%准确.