Cita APA (7th ed.)

Capno, D. G., Amongo, M., & Buenaflor, V. M. Two letters to be opened.

Cita Chicago (17th ed.)

Capno, Diosdado G., Mariano Amongo, i Virginia M. Buenaflor. Two Letters to Be Opened.

Cita MLA (9th ed.)

Capno, Diosdado G., et al. Two Letters to Be Opened.