APA (7th ed.) Citation

Potts, K. H., & Machell, K. (1995). The manual screw press for small-scale oil extraction. Intermediate Technology Publications.

Chicago Style (17th ed.) Citation

Potts, Kathryn H., and Keith Machell. The Manual Screw Press for Small-scale Oil Extraction. London: Intermediate Technology Publications, 1995.

MLA (9th ed.) Citation

Potts, Kathryn H., and Keith Machell. The Manual Screw Press for Small-scale Oil Extraction. Intermediate Technology Publications, 1995.