01400nam a2200325 a 4500001001200000003000800012006001900020007001500039008004100054010001700095020001500112040002100127035002000148050002300168082001500191110008500206245022600291260005500517300002200572490002300594504004100617533015200658650001200810650001600822650002600838655002900864710001700893830003800910856012600948ebr10041163CaPaEBRm u cr cn|||||||||980603s1998 dcua sb 000 0 eng d z 98161251  z0309060834 aCaPaEBRcCaPaEBR a(OCoLC)4496397714aQB721b.N38 1998eb04a523.442212 aNational Research Council (U.S.).bCommittee on Planetary and Lunar Exploration.14aThe exploration of near-earth objectsh[electronic resource] /cCommittee on Planetary and Lunar Exploration, Space Studies Board, Commission on Physical Sciences, Mathematics, and Applications, National Research Council. aWashington, D.C. :bNational Academy Press,c1998. axi, 32 p. :bill.1 aThe compass series aIncludes bibliographical references. aElectronic reproduction.bPalo Alto, Calif. :cebrary,d2013.nAvailable via World Wide Web.nAccess may be limited to ebrary affiliated libraries. 0aComets. 0aMeteoroids. 0aNear-earth asteroids. 7aElectronic books.2local2 aebrary, Inc. 0aCompass series (Washington, D.C.)40uhttp://site.ebrary.com/lib/rucke/Doc?id=10041163zAn electronic book accessible through the World Wide Web; click to view