2nd edition, edited by Trygve O. Berge. v + 789 pages. U. S. Department of Health, Education, and Welfare, Public Health Service, Publication No. (CDC) 75-8301. 1975. No price
edited by Thomas P. Monath. xx + 680 pages, illustrated. American Public Health Association, 1015 Fifteenth Street, N.W., Washington, D.C. 20005. 1980. $20.00