United States. Bureau of Agricultural Economics. (1931). Estimated numbers of apple trees by important varieties and ages in commercial orchards in 41 States, Jan. 1, 1928. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Bureau of Agricultural Economics. Estimated Numbers of Apple Trees by Important Varieties and Ages in Commercial Orchards in 41 States, Jan. 1, 1928. Washington: [publisher not identified], 1931.
MLA (9th ed.) CitationUnited States. Bureau of Agricultural Economics. Estimated Numbers of Apple Trees by Important Varieties and Ages in Commercial Orchards in 41 States, Jan. 1, 1928. [publisher not identified], 1931.
Warning: These citations may not always be 100% accurate.