APA (7th ed.) Citation

Capno, D. G., Amongo, M., & Buenaflor, V. M. Rizal was sad for many reasons.

Chicago Style (17th ed.) Citation

Capno, Diosdado G., Mariano Amongo, and Virginia M. Buenaflor. Rizal Was Sad for Many Reasons.

MLA (9th ed.) Citation

Capno, Diosdado G., et al. Rizal Was Sad for Many Reasons.