00362nam a2200121Ia 4500008004100000082002000041245006800061245002500129260003000154260000900184300001500193526003200208250428s9999    xx            000 0 und d  a500.2 R66l 1965 0aLaboratory approach to the physical sciences : A project manual 0cRonneberg, Conrad E.  bHoughton Mifflin Company.  c1965  a157 pages.  a500 Natural Sciences & Math