APA (7th ed.) Citation

Folstein, S. E., & Rutter, M. (1977). Infantile autism: A genetic study of 21 twin pairs. The journal of child psychology and psychiatry, 18, 297-321.

Chicago Style (17th ed.) Citation

Folstein, Susan E., and Michael Rutter. "Infantile Autism: A Genetic Study of 21 Twin Pairs." The Journal of Child Psychology and Psychiatry 18 (1977): 297-321.

MLA (9th ed.) Citation

Folstein, Susan E., and Michael Rutter. "Infantile Autism: A Genetic Study of 21 Twin Pairs." The Journal of Child Psychology and Psychiatry, vol. 18, 1977, pp. 297-321.

Warning: These citations may not always be 100% accurate.