000 00392nam a2200169Ia 4500
008 170101s1972 xx 000 0 und d
082 _a697 B30E
100 _aBERTON, J.J.
245 0 _aEstimating for heating and ventillation
250 _a3rd ed.
260 _bLondon
_c1972
300 _a296p
650 _aHEATING
653 _aHEATING
653 _aVENTILLATION
942 _2ddc
_cB
999 _c68561
_d68561