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
331.8812(42) M277 64267
Mangum G L Operating engineers the economic history of a trade union Cambridge Harvard Univ.Press 1964 xvi,344p. * Engineers Labor economics Trade union