00311nam a2200121Ia 4500082002200000100001700022245006000039260002300099300000900122490004800131500000500179700000500184  a330.95412bK18.ER  aKaran, P. K.  aEconomic regions of Chota, Nagpur, Bihar, India, 1953b  aBiharbIndiac1953  av.p.  aEconomic Geography, v.29, no.3 v July 1953  a  a