Methods for protection against silicosis and when they are justified.

Creator Personal:

Harrington, D. (Daniel), 1878-

Title:

Methods for protection against silicosis and when they are justified.

Call Number:

P19463

Date:

1938

Description:

Serial issue. Issued as: United States. Bureau of Mines. Information circular, 6989 (1938:Feb.).

Subject Topical:

Silicosis., Industrial hygiene. , Lungs--Dust diseases., Occupational diseases.