na INLIS000000000008372 20240221083450 0010-0521008372 240221 | | 0-408-70924-3 en 591.16/CON1 591.16/CON1 CRIGHTON, D.B. CONTROL of ovulation / CRIGHTON, D.B. London : Butterworths, 1978 492 p.: ill,; 23 cm. 60/LPPH/80