00620nam 2200341 4500001000400000003002300004005000900027008004100036020001400077100005500091260005500146500019600201300002100397245005800418341StarLibrary Marc Built20180420201711 ||||| |||||||||||amh  a0027-8424 aProceedings of the National Academy of Sciences of bWashingtonD.C: National Academy of Sciences c1994 a\\Reprinted from the Proceedings of the National Academy of Sciences of the United States of America, vol. 96, p. 5905-6008, May 25, 1999\\-P. opposite t.p Includes bibliographical references a5735-6250: 28 cm aColloquium on Plants and Population bIs There Time?