APA (7th ed.) Citation

Watson, D. G. (1978). Shade and ornamental trees in the nineteenth century northeastern United States. [publisher not identified].

Chicago Style (17th ed.) Citation

Watson, Daryl Gene. Shade and Ornamental Trees in the Nineteenth Century Northeastern United States. [Place of publication not identified]: [publisher not identified], 1978.

MLA (9th ed.) Citation

Watson, Daryl Gene. Shade and Ornamental Trees in the Nineteenth Century Northeastern United States. [publisher not identified], 1978.