TY - BOOK AU - Simons,Joseph Winslow TI - Home heating: systems, fuels, controls T2 - United States. Dept. of Agriculture. Farmers' bulletin AV - S21 .A6 no. 2235 U1 - 644/.1 PY - 1968///] CY - Washington PB - U.S. Govt. Print. Off. KW - Dwellings KW - Heating and ventilation KW - Farm houses KW - Heating ER -