00448nam a2200157Ia 4500003000900000008004100009040001600050080001200066100002700078245005900105250001200164260003500176300001400211650002400225650004100249IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a51bHIL  aHildebrand, Francis B. 0aMethods of applied mathematicscFrancis B. Hildebrand   a2nd ed.  aNew DelhibPrentice-Hallc1968  aix, 362p.  aApplied mathematics  aAstronomy and astrophysics thesaurus