Online Public Access Catalogue (OPAC)Library,Documentation and Information Science Division
“A research journal serves that narrow
borderland which separates the known from the unknown”
-P.C.Mahalanobis
330.72 In39 C16748
Bhattacharya N Indian Statistical Institute. Research and Training School Average elasticity of variable elasticity engel curve Calcutta ISI 1973 * Elasticity Engel curve Variable