Coal workers' pneumoconiosis.
Card's contents:704.438 704.439 KUJAWSKA ALEKSANDRA, MAREK KAZIMIERZ J., ZAHORSKI WITOLD W. Coal workers' pneumoconiosis. A critical review. Ed. by Witold W. Zahorski. Transl. by Edwin Paryski. Hanover 1974 The University Press of New England 8° s. XII, 107, nlb. 1, ilustr.