TY - BOOK AU - Rule,Glenn K. TI - Soil conservation districts in action on the land T2 - Miscellaneous publication / United States Department of Agriculture AV - S21 .A46 no. 448 PY - 1941/// CY - Washington, D.C. PB - U.S. Dept. of Agriculture KW - Soil conservation KW - United States N1 - Contribution from Soil Conservation Service ER -