Concepcion, S. O., & Panis, M. M. (1984). A Study on the information system of the Pilot Agency Bureau of Land Transportation. College of Engineering.
Chicago-viite (17. p.)Concepcion, Socorro O., ja Michael M. Panis. A Study on the Information System of the Pilot Agency Bureau of Land Transportation. Diliman, Quezon City: College of Engineering, 1984.
MLA-viite (9. p.)Concepcion, Socorro O., ja Michael M. Panis. A Study on the Information System of the Pilot Agency Bureau of Land Transportation. College of Engineering, 1984.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.