(1969). Multi-Media Instructional Programs Arthur M. Cohen. [microform].
Chicago Style (17th ed.) ZitazioaMulti-Media Instructional Programs Arthur M. Cohen. [microform]. 1969.
MLA (9th ed.) ZitazioaMulti-Media Instructional Programs Arthur M. Cohen. [microform]. 1969.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.