Cita APA (7th ed.)

Smith, P. L., & Ragan, T. J. (1999). Instructional design (2nd edition.). Prentice Hall.

Cita Chicago (17th ed.)

Smith, Patricia L., i Tillman J. Ragan. Instructional Design. 2nd edition. New Jersey: Prentice Hall, 1999.

Cita MLA (9th ed.)

Smith, Patricia L., i Tillman J. Ragan. Instructional Design. 2nd edition. Prentice Hall, 1999.