Siongco, N., Ignacio, D., Limjoco, A., & Del Rosario, C. (1990). Ortigas & Co. Limited Partnership: A systems analysis. College of Engineering.
芝加哥风格引文Siongco, Nilo, Dick Ignacio, Anna Limjoco, 与 Cecile Del Rosario. Ortigas & Co. Limited Partnership: A Systems Analysis. Diliman, Quezon City: College of Engineering, 1990.
MLA引文Siongco, Nilo, et al. Ortigas & Co. Limited Partnership: A Systems Analysis. College of Engineering, 1990.
警告:这些引文格式不一定是100%准确.