Cita APA (7a ed.)

Geiger, J. (2013). The angel effect: We are never alone (First edition.). Weinstein Books.

Cita Chicago Style (17a ed.)

Geiger, John. The Angel Effect: We Are Never Alone. First edition. New York, NY: Weinstein Books, 2013.

Cita MLA (8a ed.)

Geiger, John. The Angel Effect: We Are Never Alone. First edition. Weinstein Books, 2013.

Precaución: Estas citas no son 100% exactas.