APA (7th ed.) Citation

Atega, P. C. (2007). Historically significant rivers in the Philippines. Canopy International.

Chicago Style (17th ed.) Citation

Atega, Pedro C. "Historically Significant Rivers in the Philippines." Canopy International 2007.

MLA (9th ed.) Citation

Atega, Pedro C. "Historically Significant Rivers in the Philippines." Canopy International, 2007.

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