Police women on patrol : by Peter Bloch, Deborah Anderson, and Pamela Gervais. Vol. I, Major Findings; Vol. II, Methodology and Tables; Vol. III, Instruments. Police Foundation (1015 Eighteenth Street, N.W., Washington, D.C. 20036), 1973, 269 pp., available without charge from the Urban Institute, 2100 M Street, N.W. Washington, D.C. 20037