APA (7th ed.) Citation

Rolofson, D. E., & Knudsen, D. (1970). Soil testing. University of Nebraska, Dept. of Agricultural Engineering, Institute of Agriculture and Natural Resources.

Chicago Style (17th ed.) Citation

Rolofson, Dale E., and Delno Knudsen. Soil Testing. Lincoln: University of Nebraska, Dept. of Agricultural Engineering, Institute of Agriculture and Natural Resources, 1970.

MLA (9th ed.) Citation

Rolofson, Dale E., and Delno Knudsen. Soil Testing. University of Nebraska, Dept. of Agricultural Engineering, Institute of Agriculture and Natural Resources, 1970.