APA (7th ed.) Citation

Beaumont, J. H. (1981). A hand-operated winnower. Tropical Products Institute.

Chicago Style (17th ed.) Citation

Beaumont, J. H. A Hand-operated Winnower. London: Tropical Products Institute, 1981.

MLA (9th ed.) Citation

Beaumont, J. H. A Hand-operated Winnower. Tropical Products Institute, 1981.