APA-viite (7. p.)

Wolferstan, B., & Longhaye, G. (1928). An eight days' retreat. P.J. Kenedy.

Chicago-viite (17. p.)

Wolferstan, Bertram, ja G. Longhaye. An Eight Days' Retreat. New York: P.J. Kenedy, 1928.

MLA-viite (8. p.)

Wolferstan, Bertram, ja G. Longhaye. An Eight Days' Retreat. P.J. Kenedy, 1928.