00977agm a2200265u 4500 995707870102311 20260227104100.0 mrrcaaad 831005s1978 xx 028u 0mleng d (TU)000570787UTK01 600305 (OCoLC)09982264 TKN TKN tknk TN145 .O85 TN145.O85 Our mineral world [motion picture]. Haymarket, Va. : Educational Media International, 1978. 1 film reel (28 min.) : sd., col. ; 16 mm. Cataloging information taken from container. Topics 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. Mines and mineral resources. Educational Media International. primo 231 231