000			00283nam a2200121Ia 4500
008			190216s9999||||xx |||||||||||||| ||und||
100			_aHerbert Friedman
245		0	_aPractical Low Cost Projects
260			_bHoward Wsams _c1975
300			_a95p
650			_aPhysics
942			_cBK
999			_c33085 _d33085