APA (7th ed.) Citation

Gruner, N. (2014). Crucial truths to save your soul. Immaculate Heart Publications.

Chicago Style (17th ed.) Citation

Gruner, Nicholas. Crucial Truths to Save Your Soul. Buffalo, New York: Immaculate Heart Publications, 2014.

MLA (8th ed.) Citation

Gruner, Nicholas. Crucial Truths to Save Your Soul. Immaculate Heart Publications, 2014.