Valin, V., de la Cruz, R., & Ching, P. (1971). CVC Nickel Project Corporation: A design project. College of Engineering.
Chicago-viite (17. p.)Valin, Virgilio, Ronol de la Cruz, ja Peter Ching. CVC Nickel Project Corporation: A Design Project. Diliman, Quezon City: College of Engineering, 1971.
MLA-viite (9. p.)Valin, Virgilio, et al. CVC Nickel Project Corporation: A Design Project. College of Engineering, 1971.
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