APA (7th ed.) Citation

(1989). Educational technology research & development: ET R & D. Springer Science + Business Media, LLC.

Chicago Style (17th ed.) Citation

Educational Technology Research & Development: ET R & D. Heidelberg Berlin Wien [u.a.]: Springer Science + Business Media, LLC, 1989.

MLA (9th ed.) Citation

Educational Technology Research & Development: ET R & D. Springer Science + Business Media, LLC, 1989.

Warning: These citations may not always be 100% accurate.