APA (7th ed.) Citation

Estados Unidos. Bureau of Plant Industry, Soils, and Agricultural Engineering. (1951). Soil survey manual. Agricultural Research Administration, United States Department of Agriculture.

Chicago Style (17th ed.) Citation

Estados Unidos. Bureau of Plant Industry, Soils, and Agricultural Engineering. Soil Survey Manual. Washington: Agricultural Research Administration, United States Department of Agriculture, 1951.

MLA (9th ed.) Citation

Estados Unidos. Bureau of Plant Industry, Soils, and Agricultural Engineering. Soil Survey Manual. Agricultural Research Administration, United States Department of Agriculture, 1951.