APA (7th ed.) Citation

United States. Bureau of Soils & ProQuest (Firm). (1924). Field operations of the Bureau of Soils 1919. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Soils and ProQuest (Firm). Field Operations of the Bureau of Soils 1919. Washington: [publisher not identified], 1924.

MLA (9th ed.) Citation

United States. Bureau of Soils and ProQuest (Firm). Field Operations of the Bureau of Soils 1919. [publisher not identified], 1924.

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