APA (7th ed.) Citation

Pool, I. d. S., Milgram, S., Newcomb, T., & Kochen, M. (1989). The small world. Ablex Pub..

Chicago Style (17th ed.) Citation

Pool, Ithiel de Sola, Stanley Milgram, Theodore Newcomb, and Manfred Kochen. The Small World. Norwood, N.J.: Ablex Pub., 1989.

MLA (9th ed.) Citation

Pool, Ithiel de Sola, et al. The Small World. Ablex Pub., 1989.