Development of minimum standards for hardwoods used in producing underground coal mine timbers.

Creator Personal:
Timson, Floyd G.
Title:
Development of minimum standards for hardwoods used in producing underground coal mine timbers.
Call Number:
P19625
Date:
1978
Description:

Serial issue. Issued as: Forest Service research note, NE-261.

Subject Topical:
Hardwoods., Mine timbering.