APA-referens (7:e uppl.)

Biton, D. P. L., Lampa, N. C., & Liwanag, K. E. (1999). An industrial quality study on Avon Products Manufacturing, Inc. College of Engineering.

Chicago-referens (17:e uppl.)

Biton, Dennis Paul L., Nelson C. Lampa, och Kristian E. Liwanag. An Industrial Quality Study on Avon Products Manufacturing, Inc. Diliman, Quezon City: College of Engineering, 1999.

MLA-referens (9:e uppl.)

Biton, Dennis Paul L., et al. An Industrial Quality Study on Avon Products Manufacturing, Inc. College of Engineering, 1999.