APA (7th ed.) Citation

Orig, T. S. (1997). Mankind's ecosystems have no boundaries. Manila Bulletin.

Chicago Style (17th ed.) Citation

Orig, Thor S. "Mankind's Ecosystems Have No Boundaries." Manila Bulletin 1997.

MLA (9th ed.) Citation

Orig, Thor S. "Mankind's Ecosystems Have No Boundaries." Manila Bulletin, 1997.

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