MEHRA VANDANA. (1992). INSTRUCTIONAL SYSTEMS DESIGN: AN INNOVATION IN EDUCATIONAL TECHNOLOGY. S.S.PUB.
Chicago Style aipamenaMEHRA VANDANA. INSTRUCTIONAL SYSTEMS DESIGN: AN INNOVATION IN EDUCATIONAL TECHNOLOGY. DELHI: S.S.PUB, 1992.
MLA aipamenaMEHRA VANDANA. INSTRUCTIONAL SYSTEMS DESIGN: AN INNOVATION IN EDUCATIONAL TECHNOLOGY. S.S.PUB, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.