Gaya APA

Rubio-Arroyo, M, F. et al (2009). Biofuel Obtained from Transesterification by Combined Catalysis . Washington, DC: American Chemical Society.

Gaya MLA

Rubio-Arroyo, Manuel, F.. et al. "Biofuel Obtained from Transesterification by Combined Catalysis". Washington, DC: American Chemical Society, 2009. e-journal.