APA (7th ed.) Citation

Hagedorn, J. W., & Kizziar, J. W. (1983). Gemini: The psychology & phenomena of twins. Center for Study of Multiple Birth.

Chicago Style (17th ed.) Citation

Hagedorn, Judy W., and Janet W. Kizziar. Gemini: The Psychology & Phenomena of Twins. Chicago, Ill.: Center for Study of Multiple Birth, 1983.

MLA (9th ed.) Citation

Hagedorn, Judy W., and Janet W. Kizziar. Gemini: The Psychology & Phenomena of Twins. Center for Study of Multiple Birth, 1983.