613.9406
U58M
               Measuring the dynamics of contraceptive use proceedings of the United Nations Expert Group Meeting (1988: New York) - New York : United Nations, 1991.
               xii, 201p+tab+graphs
C1529
                Subjects: Population-Statistics-United States; Statistics and dynamics (Social Sciences); Contraception-Untied Statres; Contraceptives-United States.