00698nam a2200217Ia 4500003000900000008004100009020001800050040001600068080001500084100002100099245003800120260003800158300001300196490006600209650004100275650001000316650001600326942000700342999001500349952011600364IN-BaIIA211028s9999    xx            000 0 eng d  a0-8448-1108-4  cIIA Library  a531.5bCOO  aCook, A. H96964 0aGravity and the earthcA. H. Cook  aLondonbWykehan Publictaionc1969  axi, 95p.  aThe Wykeham science series for school and universities; no. 6  aAstronomy and astrophysics thesaurus  aEarth  aGravitation  cBK  c3913d3913  00104070aBANbBANcGENd1972-05-02g27.00l0o531.5/ COOp4370r2021-11-05v27.00w1972-05-02yBKGRs. 27.00