Development of minimum standards for hardwoods used in producing underground coal mine timbers
By: Floyd G. Timson
Contributors: United States. Forest Service; Northeastern Forest Experiment Station (Radnor, Pa.)
Series: USDA Forest Service research note NE -- 261
Publisher: Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station
Published: 1978
Place of publication: Broomall, Pa
Language: eng
Subjects: Lumbering -- United States -- By-products
Notes: Includes bibliography