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.