APA (7th ed.) Citation

Boeckman, L. E. (1985). Soil survey of Dubuque County, Iowa. U.S. Dept. of Agriculture, Soil Conservation Service in cooperation with the Iowa Agriculture and Home Economics Experiment Station.

Chicago Style (17th ed.) Citation

Boeckman, Louis E. Soil Survey of Dubuque County, Iowa. [Washington, D.C.?]: U.S. Dept. of Agriculture, Soil Conservation Service in cooperation with the Iowa Agriculture and Home Economics Experiment Station, 1985.

MLA (9th ed.) Citation

Boeckman, Louis E. Soil Survey of Dubuque County, Iowa. U.S. Dept. of Agriculture, Soil Conservation Service in cooperation with the Iowa Agriculture and Home Economics Experiment Station, 1985.