Research needs in coal mining.

2026-04-18T02:31:34Z

Creator Personal:

Leonard, Joseph W.

Title:

Research needs in coal mining.

Call Number:

P3940

Date:

undated

Description:

Serial issue. Issued as: West Virginia University. Coal Research Bureau. Technical report, no. 100.

Subject Topical:

Coal mines and mining--Research.

All:

Coal mines and mining--Research.