APA (7th ed.) Citation

Roberto, A. (1991). Understanding asthma / Ardy Roberto. Manila Times.

Chicago Style (17th ed.) Citation

Roberto, Ardy. "Understanding Asthma / Ardy Roberto." Manila Times 1991.

MLA (9th ed.) Citation

Roberto, Ardy. "Understanding Asthma / Ardy Roberto." Manila Times, 1991.

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