Mixed blood : intermarriage and ethnic identity in twentieth-century America / Paul R. Spickard. Spickard, Paul R. 1950- Intermarriage United States History 20th century. Ethnicity United States History 20th century. 306.846 SPI Includes index. Bibliography: p. 474-522. Madison, Wis. : University of Wisconsin Press, c1989. c1989. 1989 Text xii, 532 p. ; eng United States United States