APA (7th ed.) Citation

Ledford, B. R., & Sleeman, P. J. (2000). Instructional design: A primer. Information Age Publ.

Chicago Style (17th ed.) Citation

Ledford, Bruce R., and Phillip J. Sleeman. Instructional Design: A Primer. Greenwich, Conn: Information Age Publ, 2000.

MLA (9th ed.) Citation

Ledford, Bruce R., and Phillip J. Sleeman. Instructional Design: A Primer. Information Age Publ, 2000.