APA-referens (7:e uppl.)

Engelhardt, Z. (1908). The missions and missionaries of California. James H. Barry.

Chicago-referens (17:e uppl.)

Engelhardt, Zephyrin. The Missions and Missionaries of California. San Francisco: James H. Barry, 1908.

MLA-referens (8:e uppl.)

Engelhardt, Zephyrin. The Missions and Missionaries of California. James H. Barry, 1908.