Cita APA (7th ed.)
ebrary, Inc, & Singh, B. P. (2013). Biofuel crop sustainability. Wiley-Blackwell.
Cita Chicago (17th ed.)
ebrary, Inc, i Bharat P. Singh. Biofuel Crop Sustainability. Ames, Iowa: Wiley-Blackwell, 2013.
Cita MLA (9th ed.)
ebrary, Inc, i Bharat P. Singh. Biofuel Crop Sustainability. Wiley-Blackwell, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.