Ezra's Retreat: A Rockshelter/Cave Occupation Site in the North Central Great Basin.James C. Bard, Colin I. Busby and Larry S. Kobori. Davis: University of California Center for Archaeological Research at Davis Publication No. 6, xi + 255 pp., 3 plates, 4 maps, 45 figures, 32 tables, 6 appendices, $6.50 (paper).