Tan, R. R., & Culaba, A. B. (2002). Life-cycle environmental benefits of using bioethanol as a gasoline additive. Philippine Engineering Journal.
Chicago-referens (17:e uppl.)Tan, Raymond R., och Alvin B. Culaba. "Life-cycle Environmental Benefits of Using Bioethanol as a Gasoline Additive." Philippine Engineering Journal 2002.
MLA-referens (9:e uppl.)Tan, Raymond R., och Alvin B. Culaba. "Life-cycle Environmental Benefits of Using Bioethanol as a Gasoline Additive." Philippine Engineering Journal, 2002.
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