Report of the sub-group on tin, tunsgsten and vanadium
621.326
I39R
 Report of the sub-group on tin, tunsgsten and vanadium seventh five year plan, 1985-90 - New Delhi : The Author, 1984.
 V.p.
115805
  Subjects: Tin-India; Tin industry; Tungsten; Chromium group; Tungsten industry; Vanadium; Vanadium industry.

