Cita APA (7a ed.)

Houart, V., & Savill, M. (1959). The open heart: The inspiring story of father Pire and the Europe of the heart. Souvenir Press.

Cita Chicago Style (17a ed.)

Houart, Victor, y Mervyn Savill. The Open Heart: The Inspiring Story of Father Pire and the Europe of the Heart. London: Souvenir Press, 1959.

Cita MLA (9a ed.)

Houart, Victor, y Mervyn Savill. The Open Heart: The Inspiring Story of Father Pire and the Europe of the Heart. Souvenir Press, 1959.