Publication Information

Technical Papers (coal resources)
1989-01-01 
TP-8 
Abandoned underground coal mines of Des Moines, Iowa and vicinity, M. R. Howes, M. C. Culp, and H. Greenburg, 1989, 92 p., 8 figs., 1 table, 1 pl., 5 appendices. 
Polk County Pennsylvanian 
Polk 
$6.00 
$1.50 

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