Laurel, M., Gaffud, R. M., & Clemente, D. R. (1996). A work study on Consumer Specialists Incorporated. College of Engineering.
Lua i Stíl Chicago (17ú heag.)Laurel, Michael, Ryan M. Gaffud, agus Daniel R. Clemente. A Work Study on Consumer Specialists Incorporated. Diliman, Quezon City: College of Engineering, 1996.
Lua MLA (9ú heag.)Laurel, Michael, et al. A Work Study on Consumer Specialists Incorporated. College of Engineering, 1996.
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