Record Citations

APA (7th ed.) Citation
Riso, D. R. (1990). Understanding the enneagram: The practical guide to personality types. Houghton Mifflin.
Chicago Style (17th ed.) Citation
Riso, Don Richard. Understanding the Enneagram: The Practical Guide to Personality Types. Boston: Houghton Mifflin, 1990.
MLA (9th ed.) Citation
Riso, Don Richard. Understanding the Enneagram: The Practical Guide to Personality Types. Houghton Mifflin, 1990.
Warning: These citations may not always be 100% accurate.