APA-referens (7:e uppl.)
Doughty, W. E. (1915). Efficiency points: Studies in missionary fundamentals. Missionary Education Movement.
Chicago-referens (17:e uppl.)
Doughty, William E. Efficiency Points: Studies in Missionary Fundamentals. New York: Missionary Education Movement, 1915.
MLA-referens (9:e uppl.)
Doughty, William E. Efficiency Points: Studies in Missionary Fundamentals. Missionary Education Movement, 1915.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.