APA (7th ed.) Citation

Bell, D. A., Towler, B. F., & Fan, M. Coal gasification and its applications.

Chicago Style (17th ed.) Citation

Bell, D. A., Brian F. Towler, and Maohong Fan. Coal Gasification and Its Applications.

MLA (8th ed.) Citation

Bell, D. A., et al. Coal Gasification and Its Applications.