APA (7 ম সংস্করণ) উদ্ধৃতি

Carvajal, J., Gorrospe, O., Luisking, R., Medina, N., & Sasing, J. (1991). An improved enlistment system for the College of Engineering. UP College of Engineering.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Carvajal, Joel, Oliver Gorrospe, Ramon Luisking, Nelio Medina, এবং Jude Sasing. An Improved Enlistment System for the College of Engineering. Quezon City: UP College of Engineering, 1991.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Carvajal, Joel, et al. An Improved Enlistment System for the College of Engineering. UP College of Engineering, 1991.