APA-viite (7. p.)
ebrary, Inc, & Harry, K. (1999). Higher education through open and distance learning. Routledge.
Chicago-viite (17. p.)
ebrary, Inc, ja Keith Harry. Higher Education Through Open and Distance Learning. London ; New York: Routledge, 1999.
MLA-viite (9. p.)
ebrary, Inc, ja Keith Harry. Higher Education Through Open and Distance Learning. Routledge, 1999.
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