Cita APA (7th ed.)

Seels, B. (1990). Exercises in instructional design. Merrill.

Cita Chicago (17th ed.)

Seels, Barbara. Exercises in Instructional Design. Columbus, Ohio: Merrill, 1990.

Cita MLA (9th ed.)

Seels, Barbara. Exercises in Instructional Design. Merrill, 1990.