APA (7th ed.) Citation

Parco, J. M. E., & Sigua, R. G. Black spot mapping of University of the Philippines Diliman.

Chicago Style (17th ed.) Citation

Parco, John Michael E., and Ricardo G. Sigua. Black Spot Mapping of University of the Philippines Diliman.

MLA (9th ed.) Citation

Parco, John Michael E., and Ricardo G. Sigua. Black Spot Mapping of University of the Philippines Diliman.

Warning: These citations may not always be 100% accurate.