APA (7th ed.) Citation

United States. Department of Agriculture. Attention: All soil laboratories. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Department of Agriculture. Attention: All Soil Laboratories. 1970: [publisher not identified].

MLA (9th ed.) Citation

United States. Department of Agriculture. Attention: All Soil Laboratories. [publisher not identified].

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