00504nam a2200169 a 450000500170000002000150001708200160003210000180004824500450006626000450011130000230015669000270017996400220020699700190022899900170024795200700026420251203110319.0  a0486648567  a515.64bEWI  aEwing, George  aCalculus of variations with applications  aNew YorkbDover Publications.Inc.,c1985  avii,343p.c23cm.PB  aCalculus of variations  bENGcd515efg_  a104690 LIBSC C  c85493d85493  00104070aPUbPUd2002-04-05g432.18l0o515.64 EWIp104690yBK