APA (7th ed.) Citation

Della, P. D. (1999). Pinoy's invention can save RP $ 300 M in oil imports. Philippine Daily Inquirer.

Chicago Style (17th ed.) Citation

Della, Percy D. "Pinoy's Invention Can Save RP $ 300 M in Oil Imports." Philippine Daily Inquirer 1999.

MLA (9th ed.) Citation

Della, Percy D. "Pinoy's Invention Can Save RP $ 300 M in Oil Imports." Philippine Daily Inquirer, 1999.

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