00546nam a2200193 4500 0015173 20260608202926.0 260224s2002 dcu 665.74 A259 0015173 Fundamentals of gas controls Combined manual and workbook 3ra. ed. Washington American Gas Association, AGA 2002 2011-03-28 ; 2011-03-28 141 p. LIBRO American Gas Association, AGA 142 174142 174142 0 0 0 0 241961 BAAB BAAB 665.74 A259 0015173 2026-03-05 200052155 0 665.74 A259 0015173 200052155 2026-03-05 16:11:35 2026-03-05 Libro