Soil Conservation (United States Department of Agriculture, Soil Conservation Service USA)
Ending Volume & Year: 45, 1980
Missing Volume: 20(8-9);21(6-8);22(3);23(10);242-27;28(7,10,11);29(1-2,4,7-8);30(8,11);33;34;37(1,10);42(5);43(6);45(4,9-12)
Starting Volume & Year: 19, 1953