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
634.932 Im34 22584
Sisam J W B Imperial Agricultural Bureaux Use of aerial survey in forestry and agriculture Oxford Imperial Forestry Bureaux 1947 59p. * Aerial survey Agriculture Forestry Forestry engineering