Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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