Shumway, G., & Eggenhofer, N. (1964). Conestoga wagon, 1750-1850: Freight carrier for 100 years of America's westward expansion. Early American Industries Association.
Chicago Style (17th ed.) CitationShumway, George, and Nicholas Eggenhofer. Conestoga Wagon, 1750-1850: Freight Carrier for 100 Years of America's Westward Expansion. [Williamsburg? Va.]: Early American Industries Association, 1964.
MLA (9th ed.) CitationShumway, George, and Nicholas Eggenhofer. Conestoga Wagon, 1750-1850: Freight Carrier for 100 Years of America's Westward Expansion. Early American Industries Association, 1964.
Warning: These citations may not always be 100% accurate.