Abrina, J. J., Aspra, E., & Mapue, M. C. (1994). Garahe Leathercraft: A production systems study. College of Engineering.
Cita Chicago (17th ed.)Abrina, Juan Jr, Edilynn Aspra, i Ma. Concepcion Mapue. Garahe Leathercraft: A Production Systems Study. Diliman, Quezon City: College of Engineering, 1994.
Cita MLA (9th ed.)Abrina, Juan Jr, et al. Garahe Leathercraft: A Production Systems Study. College of Engineering, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.