MLA
Smith-Gratto, Karen. "Strengthening Learning on the Web: Programmed Instruction and Constructivism." Instructional and Cognitive Impacts of Web-Based Education. IGI Global, 2000. 227-240. Web. 6 Dec. 2019. doi:10.4018/978-1-878289-59-9.ch015
APA
Smith-Gratto, K. (2000). Strengthening Learning on the Web: Programmed Instruction and Constructivism. In B. Abbey (Ed.), Instructional and Cognitive Impacts of Web-Based Education (pp. 227-240). Hershey, PA: IGI Global. doi:10.4018/978-1-878289-59-9.ch015
Chicago
Smith-Gratto, Karen. "Strengthening Learning on the Web: Programmed Instruction and Constructivism." In Instructional and Cognitive Impacts of Web-Based Education, ed. Beverly Abbey, 227-240 (2000), accessed December 06, 2019. doi:10.4018/978-1-878289-59-9.ch015
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