Cita APA (7th ed.)

Parma, M. T., & Mercado, J. F. (1975). Interaction: Selections from English and American literature. National Book Store.

Cita Chicago (17th ed.)

Parma, Marcial T., i Julio F. Mercado. Interaction: Selections from English and American Literature. [Manila]: National Book Store, 1975.

Cita MLA (9th ed.)

Parma, Marcial T., i Julio F. Mercado. Interaction: Selections from English and American Literature. National Book Store, 1975.