Correspondence concerning proposed meeting of experts to revise ILO International Classification in Washington DC Sep 1978; also a circular on the Fifth International Conference on Pneumoconioses, Caracas (Venezuela), 29 Oct-3 Nov 1978

Date:

Feb-Apr 1978

Reference:

GC/237/B/1/10

Part of:

Gilson, John Cary (1912-1989)