Cita APA (7a ed.)

Hertvik, W. (1960). Instructions before marriage. Companion Press.

Cita Chicago Style (17a ed.)

Hertvik, Wenceslaus. Instructions Before Marriage. St. Francis, Ind.: Companion Press, 1960.

Cita MLA (8a ed.)

Hertvik, Wenceslaus. Instructions Before Marriage. Companion Press, 1960.