000 00440pam a2200133a 44500
040 _aP K Kelkar Library, IIT Kanpur
082 _a519.8
_bB417p
100 _aBellman, Richard
245 0 _aPerturbation techniques in mathematics, physics, and engineering
_cRichard Bellman
260 _aNew York
_bHolt, Rinehard And Winston
_c1964
300 _aviii, 118p
650 _aPerturbation techniques
997 _a26918 cop.2 C 53652 C
999 _c450264
_d450264