United States. Bureau of Agricultural Economics & Valgren, V. N. (1930). Earmarks of successful mutual. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Bureau of Agricultural Economics and V. N. Valgren. Earmarks of Successful Mutual. [Place of publication not identified]: [publisher not identified], 1930.
MLA (9th ed.) CitationUnited States. Bureau of Agricultural Economics and V. N. Valgren. Earmarks of Successful Mutual. [publisher not identified], 1930.
Warning: These citations may not always be 100% accurate.