Gaya APA

Santos-Ynigo, L., Esguerra, F, B. (1961). Geology and Geochemistry of the Nickeliferous Laterites of Nonoc and Adjacent Islands, Surigao Province, Philippines . Manila: Philippine Bureau of Mines.

Gaya MLA

Santos-Ynigo, Luis., Esguerra, Fernando, B.. "Geology and Geochemistry of the Nickeliferous Laterites of Nonoc and Adjacent Islands, Surigao Province, Philippines". Manila: Philippine Bureau of Mines, 1961. Text.