United States Bureau of Soils

Bulletin

Reconnoissance Soil Survey of the Middle San Joaquin Valley, California

Reconnoissance Soil Survey of the Lower San Joaquin Valley, California

Soil Survey of the Colusa Area, California

Soil Survey of the Madera Area, California

Soil Survey of Payne County, Oklahoma

Soil Survey of the Delta Area, Utah

Soil Reconnoissance in Alaska

Soil Survey of Kewaunee County, Wisconsin

Soil Survey of Porter County Indiana

Soil Survey of Multnomah County, Oregon

Study of the Soils of the United States; Volume No. 85

Fertilizer Resources of the United States

Soil Survey of the Lower Salinas Valley, California

Soil Survey of the San Bernardino Valley, California