APA (7th ed.) Citation

Larsen, L. (1981). Farm tractors, 1950-1975. American Society of Agricultural Engineers.

Chicago Style (17th ed.) Citation

Larsen, Lester. Farm Tractors, 1950-1975. St. Joseph, Mich: American Society of Agricultural Engineers, 1981.

MLA (9th ed.) Citation

Larsen, Lester. Farm Tractors, 1950-1975. American Society of Agricultural Engineers, 1981.