Urlanda, R. V. (2000). Mining: A sunset industry that could shine again. Philippine Panorama.
Chicago (17e ed.) BronvermeldingUrlanda, Randy V. "Mining: A Sunset Industry That Could Shine Again." Philippine Panorama 2000.
MLA (9e ed.) BronvermeldingUrlanda, Randy V. "Mining: A Sunset Industry That Could Shine Again." Philippine Panorama, 2000.
Let op: Deze citaties zijn niet altijd 100% accuraat.