APA Format
Lewis, Roger; Spencer, Dong. (1986).
What is open learning ? :an introduction to the series /Roger Lewis and Doug spencer
. : The Council for Educational Technology,.
MLA Format
Lewis, Roger; Spencer, Dong.
What is open learning ? :an introduction to the series /Roger Lewis and Doug spencer
. : The Council for Educational Technology,, 1986
Chicago Format
Lewis, Roger; Spencer, Dong. What is open learning ? :an introduction to the series /Roger Lewis and Doug spencer. : The Council for Educational Technology,, 1986.