APA (7th ed.) Citation

United States. Bureau of Soils. (1908). Soil survey assignment sheet. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Soils. Soil Survey Assignment Sheet. [Washington]: [publisher not identified], 1908.

MLA (9th ed.) Citation

United States. Bureau of Soils. Soil Survey Assignment Sheet. [publisher not identified], 1908.

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