Cita APA (7th ed.)

de Guzman, O. (2001). Viruses: The unseen enemies. Health Today.

Cita Chicago (17th ed.)

de Guzman, Orange. "Viruses: The Unseen Enemies." Health Today 2001.

Cita MLA (9th ed.)

de Guzman, Orange. "Viruses: The Unseen Enemies." Health Today, 2001.