APA (7th ed.) Citation

Ahlberg, N. R., & Giffen, A. V. (1972). Field evaluation and design considerations of aerobic digestion. Ministry of the Environment.

Chicago Style (17th ed.) Citation

Ahlberg, N. R., and A. V. Giffen. Field Evaluation and Design Considerations of Aerobic Digestion. Toronto, Ont.: Ministry of the Environment, 1972.

MLA (9th ed.) Citation

Ahlberg, N. R., and A. V. Giffen. Field Evaluation and Design Considerations of Aerobic Digestion. Ministry of the Environment, 1972.