APA (7th ed.) Citation

United States. Bureau of Entomology. (1886). [Form letter requesting information on silk culture activities]. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Entomology. [Form Letter Requesting Information on Silk Culture Activities]. [Washington]: [publisher not identified], 1886.

MLA (9th ed.) Citation

United States. Bureau of Entomology. [Form Letter Requesting Information on Silk Culture Activities]. [publisher not identified], 1886.

Warning: These citations may not always be 100% accurate.