Regalado, E. MGB stops nickel mining operation in Davao Oriental. The Philippine Star.
Čikaški stil citiranja (17. izdanje)Regalado, Edith. "MGB Stops Nickel Mining Operation in Davao Oriental." The Philippine Star .
MLA način citiranja (9. izdanje)Regalado, Edith. "MGB Stops Nickel Mining Operation in Davao Oriental." The Philippine Star, .
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