APA-referens (7:e uppl.)

Não informado. (1972). Improving human performance quarterly. National Society for Programmed Instruction.

Chicago-referens (17:e uppl.)

Não informado. Improving Human Performance Quarterly. Washington: National Society for Programmed Instruction, 1972.

MLA-referens (8:e uppl.)

Não informado. Improving Human Performance Quarterly. National Society for Programmed Instruction, 1972.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.