Cita APA (7th ed.)

Haffert, J. M. (1992). To prevent this. Two Hearts Media Organization.

Cita Chicago (17th ed.)

Haffert, John M. To Prevent This. Makati: Two Hearts Media Organization, 1992.

Cita MLA (9th ed.)

Haffert, John M. To Prevent This. Two Hearts Media Organization, 1992.