Ward, T. (1971). Programmed instruction for theological education by extension (2ª ed.). Cameo.
Chicago-referens (17:e uppl.)Ward, Ted. Programmed Instruction for Theological Education by Extension. 2ª ed. Cameo, 1971.
MLA-referens (9:e uppl.)Ward, Ted. Programmed Instruction for Theological Education by Extension. 2ª ed. Cameo, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.