Phosphate rock : a bibliography of world resources /
Notholt , Arthur J.G
Phosphate rock : a bibliography of world resources / by Arthur J.G.Notholt and Kenneth Hartley - London : Mining Journal Books, c1983 - xxxv , 147 p . : 21cm .
0900117362
86-059980
Phosphate rock--Bibliography
Phosphate rock : a bibliography of world resources / by Arthur J.G.Notholt and Kenneth Hartley - London : Mining Journal Books, c1983 - xxxv , 147 p . : 21cm .
0900117362
86-059980
Phosphate rock--Bibliography
