APA (7th ed.) Citation

Katigbak, A. F. (2005). FDA approves Merck's combination vaccine. Philippine Star.

Chicago Style (17th ed.) Citation

Katigbak, Antonio F. "FDA Approves Merck's Combination Vaccine." Philippine Star 2005.

MLA (9th ed.) Citation

Katigbak, Antonio F. "FDA Approves Merck's Combination Vaccine." Philippine Star, 2005.

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