Roberts, N. (1982). Practical guide to computers in education. Addison-WEsley Publishing, Co.
Chicago-viite (17. p.)Roberts, Nancy. Practical Guide to Computers in Education. Reading, MA: Addison-WEsley Publishing, Co, 1982.
MLA-viite (9. p.)Roberts, Nancy. Practical Guide to Computers in Education. Addison-WEsley Publishing, Co, 1982.
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