Braga, V., Blanco, M., & Go, M. (1999). A Study on Skylark Plastic Industries, Incorporated. College of Engineering.
Chicago Style (17. basım) AtıfBraga, Virginia, Mariel Blanco, ve Michelle Go. A Study on Skylark Plastic Industries, Incorporated. Diliman, Quezon City: College of Engineering, 1999.
MLA (9th ed.) AtıfBraga, Virginia, et al. A Study on Skylark Plastic Industries, Incorporated. College of Engineering, 1999.
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