Citazione Stile APA (7a Edizione)
Ward, T., & Ward, M. (1970). Programmed instruction for theological education by extension. Erickson Hall.
Citazione stile Chigago Style (17a edizione)
Ward, Ted, e Margaret Ward. Programmed Instruction for Theological Education by Extension. Michigan: Erickson Hall, 1970.
Citatione MLA (9a ed.)
Ward, Ted, e Margaret Ward. Programmed Instruction for Theological Education by Extension. Erickson Hall, 1970.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.