000 00461nam a2200169Ia 4500
008 160615s9999 xx 000 0 und d
100 _aMUSEUM OF HISTORY & TECHNOLOGY
245 _aContributions. Papers 69-72 on technology
260 _aWashington
260 _bSmithsonian Institution Press
260 _c1968
300 _av p. + 145
440 _aUnited States National Museum Bulletin 252
942 _cBooks
999 _c9450
_d9450