.245
a	SPATIAL Variation in Total Element Concentration in Soil Within the Northern Great Plains Coal Region
h	Book
.100
a	SEVERSON, R. C.
.005
a	20080123173442
.260
a	Washington, D.C.
b	United State Goverment Printing Office
c	1979
.084
a	631.410 976 SEV
.300
a	aneka hlm.: gamb., tab.
b	30 cm.
c	aneka hlm.: gamb., tab.; 30 cm.
.336
a	Book