Cita APA (7a ed.)

Castro, P. P. M. (1990). Calibration of the sysops computer model. Philippine Engineering Journal.

Cita Chicago Style (17a ed.)

Castro, Peter Paul M. "Calibration of the Sysops Computer Model." Philippine Engineering Journal 1990.

Cita MLA (9a ed.)

Castro, Peter Paul M. "Calibration of the Sysops Computer Model." Philippine Engineering Journal, 1990.