000			00354nam a22001337a 4500
020			_a0873551303
050			_aGC 31.5 _b.F6
100			_aFord, Brent A
245			_a Project earth science.
260			_aUS; _bNTSA, _c1975.
300			_a210p.
650			_vOceanography--Study and teaching (Secondary) _xOceanography--Experiments
942			_2lcc _cGEN
999			_c10346 _d10346