Cita APA (7th ed.)

O'Neil, H. F. (1979). Issues in instructional systems development. Academic Press.

Cita Chicago (17th ed.)

O'Neil, Harold F. Issues in Instructional Systems Development. Nueva York: Academic Press, 1979.

Cita MLA (9th ed.)

O'Neil, Harold F. Issues in Instructional Systems Development. Academic Press, 1979.