Cita APA

Régamey, P. (. 1., & Pontifex, M. (. 1. (1960). What is an angel? New York: Hawthorn books.

Citación estilo Chicago

Régamey, Pie-Raymond (O.P.) 1900-1996, and Mark (O.S.B.) 1896- Pontifex. What Is an Angel? New York: Hawthorn books, 1960.

Cita MLA

Régamey, Pie-Raymond (O.P.) 1900-1996, and Mark (O.S.B.) 1896- Pontifex. What Is an Angel? New York: Hawthorn books, 1960.