00841cam a2200241 4500 agr68000342 DLC 20260227111032.0 700127s1968 dcua 000 0 eng c agr68000342 U.S. Nat'l Agr. Libr. DLC DLC S21 .A6 no. 2235 1 Ag84F no. 2235 644/.1 Simons, Joseph Winslow, 1908- Home heating: systems, fuels, controls [by Joseph W. Simons. Washington, U.S. Govt. Print. Off., 1968] 24 p. illus. (part col.) 24 cm. United States. Dept. of Agriculture. Farmers' bulletin no. 2235 Dwellings Heating and ventilation. Farm houses Heating. Farmers' bulletin (United States. Department of Agriculture) ; no. 2235. 12624 12624