APA
Pool I. d. S., Milgram S., Newcomb T. & Kochen M. (. (1989). The small world. Norwood, N.J: Ablex Publishing Corporation.
Chicago
Pool Ithiel de Sola, Milgram Stanley, Newcomb Theodore and Kochen Manfred (ed). 1989. The small world. Norwood, N.J: Ablex Publishing Corporation.
Harvard
Pool I. d. S., Milgram S., Newcomb T. and Kochen M. (. (1989). The small world. Norwood, N.J: Ablex Publishing Corporation.
MLA
Pool Ithiel de Sola, Milgram Stanley, Newcomb Theodore and Kochen Manfred (ed). The small world. Norwood, N.J: Ablex Publishing Corporation. 1989.