APA (7th ed.) Citation

Calub, C. B., Magpili, R. L. M., & Diaz, L. H. A. (1998). ULAN: A graphical simulation of rainfall.

Chicago Style (17th ed.) Citation

Calub, Christine B., Rachelle Lynn M. Magpili, and Laya Hasmin A. Diaz. ULAN: A Graphical Simulation of Rainfall. 1998.

MLA (9th ed.) Citation

Calub, Christine B., et al. ULAN: A Graphical Simulation of Rainfall. 1998.