Methods of measuring soil moisture in the field /
by A.I. Johnson.

APA Citation

Johnson, A. I. (Arnold Ivan)., Geological Survey (U.S.). (1962). Methods of measuring soil moisture in the field. [Reston, Va.?]: U.S. Dept. of the Interior, U.S. Geological Survey .

MLA Citation

Johnson, A. I. (Arnold Ivan), 1919-, and Geological Survey (U.S.). Methods of Measuring Soil Moisture In the Field. [Reston, Va.?]: U.S. Dept. of the Interior, U.S. Geological Survey , 1962.

Warning: These citations may not always be complete (especially for serials).