Cita APA (7a ed.)

International Congress on Twin Studies & Nance, W. E. (1978). Twin research: Proceedings of the 2. International Congress on Twin Studies Aug. 29 - Sept. 1, 1977 Washington, D.C. Liss.

Cita Chicago Style (17a ed.)

International Congress on Twin Studies y Walter E. Nance. Twin Research: Proceedings of the 2. International Congress on Twin Studies Aug. 29 - Sept. 1, 1977 Washington, D.C. New York: Liss, 1978.

Cita MLA (9a ed.)

International Congress on Twin Studies y Walter E. Nance. Twin Research: Proceedings of the 2. International Congress on Twin Studies Aug. 29 - Sept. 1, 1977 Washington, D.C. Liss, 1978.