Santos-Ynigo, Luis Marcial <br/><br/>
Geology, structure and origin of the Nickeliferous Laterites of Nonoc Island, Surigao, Philippines  [microform] / 
Luis Marcial Santos-Ynigo 
 - Ann Arbor, Mich. :  University Microfilms International,  1960 
 - 1 microfilm reel :  positive ;  35 mm. 
<br/><br/>Thesis (Ph.D.) - Stanford University, 1960 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Philippine Islands<br/>Geology, Structural
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Philippine Islands--Geology