00377cam a2200121   4500020001500000050001000015100002200025245003700047260009500084300001000179490004700189650001900236  a087834002500aHQ7661 aCallahan, Daniel,10aEthics and population limitation  a[New York,bPopulation Council; distributed by Key Book Service, Bridgeport, Conn.,c1971]  a45 p.1 aOccasional paper of the Population Council 0aBirth control.