01069cam a2200265   450000500170000000800410001701000170005802000150007504000280009005000150011808200210013324500720015426000350022630000320026135000110029350000330030450001530033750400410049065000230053170000390055471000640059394200120065799900150066995201190068420231228114446.0180516s1971    nyua     bs   101 0 eng    a   76177375   a0070574715  aDLCcDLCdDLCdBD-DhBPA00aHB851b.I800a304.6bIST  197100aIs there an optimum level of population?cEdited by S. Fred Singer.  aNew York,bMcGraw-Hillc[1971]  axiv, 426 p.billus.c24 cm.  a$12.50  a"A Population Council book."  a"Outgrowth of a symposium held in Boston in December 1969 as part of the annual meeting of the American Association for the Advancement of Science."  aIncludes bibliographical references. 0aPopulation.9121781 aSinger, S. Fredd1924-eed.9100292 aAmerican Association for the Advancement of Science.912179  2ddccBK  c4500d4500  102ddc4070aBPATCbBPATCcGENd2018-02-16l0o304.6 IST  1971p18164r2018-02-16 00:00:00w2018-02-16yBKzMaruf