Cita APA (7th ed.)
Seels, B., & Glasgow, Z. (1990). Exercises in Instructional Design. Merrill.
Cita Chicago (17th ed.)
Seels, Barbara, i Zita Glasgow. Exercises in Instructional Design. London: Merrill, 1990.
Cita MLA (9th ed.)
Seels, Barbara, i Zita Glasgow. Exercises in Instructional Design. Merrill, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.