TY - CHAP A1 - David, P.A. A1 - Sanderson, W.C T1 - Rudimentary contraceptive methods and the American transition to marital fertility control, 1855–1915 Y1 - 1986 A3 - Engerman, S.L. A3 - Gallman, R.E. T2 - Long-Term Factors in American Economic Growth CY - Chicago PB - University of Chicago Press SP - 307 EP - -390 ER -