000 00309nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a697
_bKHA
100 _aKhashab, A M
245 0 _aHeating, ventilating and air conditioning systems estimating manual
260 _aNew York
_bMcGraw Hill
_c1977
942 _cBK
999 _c29780
_d29780