APA (7th ed.) Citation

Geiger, J. G. (2013). The angel effect: We are never alone. HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Geiger, John Grigsby. The Angel Effect: We Are Never Alone. HarperCollins Publishers, 2013.

MLA (8th ed.) Citation

Geiger, John Grigsby. The Angel Effect: We Are Never Alone. HarperCollins Publishers, 2013.

Warning: These citations may not always be 100% accurate.