APA (7th ed.) Citation

Gonzales, E. G. (2009). All about purifying drinking water. IN Medical notes [column]. Manila Bulletin.

Chicago Style (17th ed.) Citation

Gonzales, Eduardo G. "All About Purifying Drinking Water. IN Medical Notes [column]." Manila Bulletin 2009.

MLA (9th ed.) Citation

Gonzales, Eduardo G. "All About Purifying Drinking Water. IN Medical Notes [column]." Manila Bulletin, 2009.

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