00467nam a2200169Ia 4500003000900000008004100009040001600050080001600066100001800082245004800100260003100148300001600179650004100195650001300236650002600249650002200275IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a517.27bKIM  aKimball, W. S 0aCalculus of variationscProf. W. S. Kimball  aLondonbButterworthsc1952  aviii, 543p.  aAstronomy and Astrophysics Thesaurus  aCalculus  aDifferential calculus  aIntegral calculus