APA (7th ed.) Citation

Hughes, H. A., Vaughan, D. H., & Holmes, B. J. (1979). Energy for biomass crop production. American Society of Agricultural Engineers.

Chicago Style (17th ed.) Citation

Hughes, Harold A., D. H. Vaughan, and B. J. Holmes. Energy for Biomass Crop Production. St. Joseph, Mich.: American Society of Agricultural Engineers, 1979.

MLA (9th ed.) Citation

Hughes, Harold A., et al. Energy for Biomass Crop Production. American Society of Agricultural Engineers, 1979.