APA (7th ed.) Citation

Ong, H., Greenfield, P., & Pullammanapalul, P. (2006). A Review of the Anaerobic Digestion Process. INTI Publishing House Sdn. Bhd.

Chicago Style (17th ed.) Citation

Ong, H.K, P.F Greenfield, and P. Pullammanapalul. A Review of the Anaerobic Digestion Process. INTI Publishing House Sdn. Bhd, 2006.

MLA (9th ed.) Citation

Ong, H.K, et al. A Review of the Anaerobic Digestion Process. INTI Publishing House Sdn. Bhd, 2006.