Eddy, Gerald E.  1907- <br/><br/>
Geology of the Crystal oil field, Montcalm County, Michigan, 
by G. E. Eddy. 
 - [Lansing?]  1936. 
 - cover-title, 8 numb. l.,  fold. map, fold. profile.  27 cm. 
 - Michigan.  Dept. of Conservation.  Geological Survey Division.  Progress report,  no. 1 .
 - Michigan.  Geological Survey Division.  Progress report ;  no. 1. .
<br/><br/> Photoprinted. 
<br/><br/><label>LCCN: </label>gs 37000117  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Michigan--Montcalm County.<br/>Petroleum--Michigan--Montcalm County.
<br/><br/><label>LC Class. No.: </label>TN24.M5  / A34 no. 1