Boyer, Paul S. Salem possessed : the social origins of witchcraft / by Paul Boyer and Stephen Nissenbaum. - Cambridge, Mass : Harvard University Press, 1974. - xxi, 231 p. : ill. ; 25 cm. Includes bibliographical references. ISBN: 0674785266 Subjects--Personal Names: Porter family.Putnam family. Subjects--Topical Terms: Witchcraft--Massachusetts--Salem.