Contribution to Book
Blackwell Companion to Sociology
063121318X (hc : alk. paper)
Author posting. Copyright © Blackwell Publishing, Ltd, 2001. This is the author's version of the work. It is posted here by permission of Blackwell Publishing, Ltd. for personal use, not for redistribution.
The definitve version was published in The Blackwell Companion to Sociology, 2001, pp. 16-29.