TY  - SER
TI  -  Concentration and size of gravel in relation to neutron moisture and density probe calibration / 
SN  -  0038-075
CY  -  Baltimore [etc.] : 
PB  -  Williams & Wilkins
KW  -  Soil science
KW  -  Periodicals
KW  -  Soil moisture
KW  -  Measurement
KW  -  Soils
KW  -  Density
N1  -  From Soil Science journal Vol. 127, No. 1, 1979
ER  -