Publication Information

Technical Papers (coal resources)
1986-01-01 
TP-7 
Palynostratigraphy of the Lower and Middle Pennsylvanian coals of Iowa, R. L. Ravn, 1986, 244 p., 14 figs., 1 table, 40 pl., 2 appendices. 
 
 
$10.00 
$2.00 

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