Cita APA (7a ed.)

Carreon, C. L. (2013). Letter. The University of the Philippines Press.

Cita Chicago Style (17a ed.)

Carreon, Charmaine Luzano. Letter. Diliman Quezon City: The University of the Philippines Press, 2013.

Cita MLA (9a ed.)

Carreon, Charmaine Luzano. Letter. The University of the Philippines Press, 2013.