APA-referens (7:e uppl.)

Wales, C. E., & Stager, R. A. (1978). The guided design approach. Educational Technology Publications.

Chicago-referens (17:e uppl.)

Wales, Charles E., och Robert A. Stager. The Guided Design Approach. Englewood Cliffs, N.J.: Educational Technology Publications, 1978.

MLA-referens (8:e uppl.)

Wales, Charles E., och Robert A. Stager. The Guided Design Approach. Educational Technology Publications, 1978.