Dahl, O. (1966). St. Marks Center for Continuing Education: Its purpose, plan and program.
Citazione stile Chigago Style (17a edizione)Dahl, Orville. St. Marks Center for Continuing Education: Its Purpose, Plan and Program. San Francisco, 1966.
Citatione MLA (9a ed.)Dahl, Orville. St. Marks Center for Continuing Education: Its Purpose, Plan and Program. 1966.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.