APA-Zitierstil (7. Ausg.)

Dy, G. G., Sumalabe, M. U., & Velasquez, G. D. (2004). A Feasibility Study on Ecobag, Inc. College of Engineering.

Chicago-Zitierstil (17. Ausg.)

Dy, Glady G., Marian U. Sumalabe, und Gabriel D. Velasquez. A Feasibility Study on Ecobag, Inc. Diliman, Quezon City: College of Engineering, 2004.

MLA-Zitierstil (9. Ausg.)

Dy, Glady G., et al. A Feasibility Study on Ecobag, Inc. College of Engineering, 2004.