MLA
Saum, Robert R. "An Abridged History of Learning Objects." Learning Objects for Instruction: Design and Evaluation, edited by Pamela Taylor Northrup, IGI Global, 2007, pp. 1-15. https://doi.org/10.4018/978-1-59904-334-0.ch001
APA
Saum, R. R. (2007). An Abridged History of Learning Objects. In P. Taylor Northrup (Ed.), Learning Objects for Instruction: Design and Evaluation (pp. 1-15). IGI Global Scientific Publishing. https://doi.org/10.4018/978-1-59904-334-0.ch001
Chicago
Saum, Robert R. "An Abridged History of Learning Objects." In Learning Objects for Instruction: Design and Evaluation, edited by Pamela Taylor Northrup, 1-15. Hershey, PA: IGI Global, 2007. https://doi.org/10.4018/978-1-59904-334-0.ch001
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