000			00303nam a22001577a 4500
003			OSt
005			20251030160425.0
040			_cNNL
041			_aEng
082			_a509.2 _bB614 1958
245			_aBlazers of new trails
260			_c1958
300			_a45 p.
650			_aScience
942			_cENG
999			_c120013 _d120013