De Guzman, M. P., & Sigua, R. G. Application of a knowledge-based expert system for intersection improvement. Philippine Engineering Journal.
Citazione stile Chigago Style (17a edizione)De Guzman, Mark P., e Ricardo G. Sigua. "Application of a Knowledge-based Expert System for Intersection Improvement." Philippine Engineering Journal .
Citatione MLA (9a ed.)De Guzman, Mark P., e Ricardo G. Sigua. "Application of a Knowledge-based Expert System for Intersection Improvement." Philippine Engineering Journal, .
Attenzione: Queste citazioni potrebbero non essere precise al 100%.