Placer operations of North Mindanao Mining Co., Surigao, Mindanao
| मुख्य लेखक: | |
|---|---|
| अन्य लेखक: | |
| स्वरूप: | पुस्तक |
| भाषा: | English |
| प्रकाशित: |
Manila
Bureau of Print.
1939.
|
| श्रृंखला: | Philippines (Commonwealth) Bureau of Mines Information circular
no.1 |
| विषय: |