000			00519nam a22001457a 4500
008			230525b |||||||| |||| 00| 0 eng d
040			_aNational Science Library _cNational Science Library
080			_aR 5/6(03) _bK0-8
245			_aMcGraw-Hill yearbook of science and technology _c/ McGraw-Hill Encyclopedia of Science and Technology
260			_aUSA: _bMcGraw-Hill Encyclopedia of Science and Technology, _c1969
300			_a424p.
650			_aScience
653			_aScience and technology
942			_2udc _cENC
999			_c34632 _d34632