00530nam a2200169Ia 450000500170000000800410001724500330005810000220009170000180011326000420013130001050017330000250027802000170030365000090032005000190032954600120034820260803094147.0251212s1971    xx            000 0 und d1 aMapping /cAbbott, Verlin M.  aAbbott, Verlin M.  aWeaver, Larry  aSt. Louis, MI :bMilliken Pub,c1971.  a: b12 transparencies : col. + 16 duplicating masters and guide (10 pages :billustrations ; 28 cm.)  dEarth Science series  aTransparency  aMaps  a912 Ab21 c1971  aEnglish