APA-Zitierstil (7. Ausg.)

Juel-Nielsen, N. (1980). Individual and environment: Monozygotic twins reared apart (Rev. ed.). International Univ. Pr.

Chicago-Zitierstil (17. Ausg.)

Juel-Nielsen, Niels. Individual and Environment: Monozygotic Twins Reared Apart. Rev. ed. New York: International Univ. Pr, 1980.

MLA-Zitierstil (9. Ausg.)

Juel-Nielsen, Niels. Individual and Environment: Monozygotic Twins Reared Apart. Rev. ed. International Univ. Pr, 1980.