APA-referens (7:e uppl.)

Owens, T. R. (1979). Program evaluation skills for busy administrators (Rev. ed.). Northwest Regional Educational Laboratory.

Chicago-referens (17:e uppl.)

Owens, Thomas R. Program Evaluation Skills for Busy Administrators. Rev. ed. Portland, Oregon: Northwest Regional Educational Laboratory, 1979.

MLA-referens (8:e uppl.)

Owens, Thomas R. Program Evaluation Skills for Busy Administrators. Rev. ed. Northwest Regional Educational Laboratory, 1979.