00977agm a2200265u  450000100160000000500170001600700240003300800410005703500230009803500110012103500200013204000130015204900090016509000160017409900140019024500410020426000620024530000490030750000490035652002130040565000330061871000370065196600100068899900130069899570787010231120260227104100.0mrrcaaad               831005s1978    xx 028u          0mleng d  a(TU)000570787UTK019 a600305  a(OCoLC)09982264  aTKNcTKN  atknk  aTN145b.O85  aTN145.O8500aOur mineral worldh[motion picture].  aHaymarket, Va. :bEducational Media International,c1978.  a1 film reel (28 min.) :bsd., col. ;c16 mm.  aCataloging information taken from container.  aTopics included are : where minerals are found, modern techniques of exploration, how minerals formed in the earth, interdependence of mining and using countries, conserving our diminishing mineral resources. 0aMines and mineral resources.2 aEducational Media International.  aprimo  c231d231