000			00567nam a2200193Ia 4500
008			130910s9999 xx 000 0 und d
041			_aeng
082			_221st ed. _a634.98 _bBET/T
100			_aBetts, Harold S.
245			_aTimber, its strength, seasoning, and grading _cby Harold S. Betts
260			_aNew York : _bMcGraw-Hill , _c1919
300			_ax, 224p.: ill ; _c27cm
504			_aIndex: pp 225-34
653			_aStrength of materials
653			_aTimber-United States
653			_aWood-Testing
700			_aBetts, Norman Dewitt, ded.
942			_cEN _2ddc _02
999			_c29623 _d29623