Grading wool /
by James W. Christie.
- Washington, D.C. : U.S. Dept. of Agriculture, 1938.
- 24 p. : ill. ; 23 cm.
- Farmers' bulletin / United States Department of Agriculture ; no. 1805 .
- Farmers' bulletin (United States. Department of Agriculture) ; no. 1805. .
Contribution from Bureau of Agricultural Economics.