Cita APA (7a ed.)

Sutton, M. L. (2014). Heaven Opens: The Trinitarian Mysticism of Adrienne von Speyr. Fortress Press.

Cita Chicago Style (17a ed.)

Sutton, Matthew Lewis. Heaven Opens: The Trinitarian Mysticism of Adrienne Von Speyr. Minneapolis: Fortress Press, 2014.

Cita MLA (8a ed.)

Sutton, Matthew Lewis. Heaven Opens: The Trinitarian Mysticism of Adrienne Von Speyr. Fortress Press, 2014.