00525nam a2200169Ia 4500003000900000008004100009020001800050040001600068080001600084245011300100260003300213300001000246650004100256650002100297650001800318700001900336IN-BaIIA211028s9999    xx            000 0 eng d  a0-7290-0055-9  cIIA Library  a031:55bHAL 3aAn Encyclopaedia of Geology Planet Earthcedited by A. Hallam                                                 aOxfordbPergamon Pressc1977  a319p.  aAstronomy and Astrophysics Thesaurus  aEarth-Geophysics  aGeology-Earth  aHallam, A., ed