APA (7th ed.) Citation

Hedstrom, G. T. (1987). Soil survey of Knox and Lincoln Counties, Maine. U.S. Dept. of Agriculture, Soil Conservation Service.

Chicago Style (17th ed.) Citation

Hedstrom, Gary T. Soil Survey of Knox and Lincoln Counties, Maine. [Washington, D.C.?]: U.S. Dept. of Agriculture, Soil Conservation Service, 1987.

MLA (9th ed.) Citation

Hedstrom, Gary T. Soil Survey of Knox and Lincoln Counties, Maine. U.S. Dept. of Agriculture, Soil Conservation Service, 1987.