APA-referens (7:e uppl.)

Esto, W., Fernandez, R. A., Lontoc, N., & Nieva, J. M. (1992). Lonal Merchandising Stock information system. College of Engineering.

Chicago-referens (17:e uppl.)

Esto, Wilberto, Ray Anthony Fernandez, Norman Lontoc, och John Martin Nieva. Lonal Merchandising Stock Information System. Diliman, Quezon City: College of Engineering, 1992.

MLA-referens (9:e uppl.)

Esto, Wilberto, et al. Lonal Merchandising Stock Information System. College of Engineering, 1992.