United States. Bureau of Agricultural Economics, Olsen, N. A., & Williams, R. W. (1928). Opinions and letters of general interest to cotton industry. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Bureau of Agricultural Economics, Nils Andreas Olsen, and R. W. Williams. Opinions and Letters of General Interest to Cotton Industry. Washington: [publisher not identified], 1928.
MLA (9th ed.) CitationUnited States. Bureau of Agricultural Economics, et al. Opinions and Letters of General Interest to Cotton Industry. [publisher not identified], 1928.
Warning: These citations may not always be 100% accurate.