Baligod, R., Librando, Z. C., Rigor, M. M., & Sabareza, M. G. V. (1997). A Service system study on Utility XYZ. College of Engineering.
Citace podle Chicago (17th ed.)Baligod, Robin, Zeerynah C. Librando, May M. Rigor, a Ma. Genaline V. Sabareza. A Service System Study on Utility XYZ. Diliman, Quezon City: College of Engineering, 1997.
Citace podle MLA (9th ed.)Baligod, Robin, et al. A Service System Study on Utility XYZ. College of Engineering, 1997.
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