Style de citation APA (7e éd.)

Riso, D. R., & Foster, J. A. (2017). Personality types: Using the enneagram for self-discovery (Unabridged.). Tantor Media.

Style de citation Chicago (17e éd.)

Riso, Don Richard, et James Anderson Foster. Personality Types: Using the Enneagram for Self-discovery. Unabridged. Old Saybrook: Tantor Media, 2017.

Style de citation MLA (8e éd.)

Riso, Don Richard, et James Anderson Foster. Personality Types: Using the Enneagram for Self-discovery. Unabridged. Tantor Media, 2017.

Attention : ces citations peuvent ne pas être correctes à 100%.