Joan M. Jensen: Passage from India: Asian Indian immigrants in North America, x, 350 pp., 4 plates. New Haven and London: Yale University Press, 1988. £25, $40. - Bruce La Brack: The Sikhs of northern California, 1904–1975. (Immigrant Communities & Ethnic Minorities in the United States and Canada, 22.) xviii, 489 pp. New York: AMS Press, 1988. $67.50.