000			01129nam a22001817a 4500
999			_c7705 _d7705
003			OSt
005			20211113125604.0
008			211113b ||||| |||| 00| 0 eng d
040			_aBUL _beng _cBUL _dBUL _erda
082			_220 _a031.2 _bUNI
245			_aThe new universal library : _bvolume twenty / _cInternational Learning Systems Corporation Ltd
260			_aLondon : _bInternational Learning Systems Corporation Ltd, _cc1969
300			_a480 p. : _bill. (some col.) ; _c26 cm.
500			_aCONTENTS ENGINEERING Tools, materials and methods early applications of power introduction of the steam-engine further development of the steam-engine some practical details jets, rockets and turbines internal-combustion engines the motor car the ship aviation ELECTRICITY early history direct current power generation, distribution and utilization audio engineering radio television and radar ASTRONOMY The sky different kinds of time the moon the solar system the stars
650			_aencyclopedias and dictionaries
650			_alibrary
942			_2ddc _cBO _h031.2 _i1 _kUNI _m031.2 UNI