APA-referens (7:e uppl.)

Stradley, W. E. (1973). Administrator's guide to an individualized performance results curriculum. Center for Applied Research in Education.

Chicago-referens (17:e uppl.)

Stradley, William E. Administrator's Guide to an Individualized Performance Results Curriculum. New York: Center for Applied Research in Education, 1973.

MLA-referens (9:e uppl.)

Stradley, William E. Administrator's Guide to an Individualized Performance Results Curriculum. Center for Applied Research in Education, 1973.