TY  - SER
AU  - Bear, Firman E. and others,
TI  - Soil Science Vol. 98(1-3,5,6), Vol. 105(6), Vol. 124(6), Vol. 125(2), Vol. 132(4)
U1  - 631.4 
PY  - 1964///,68,77-78,81
CY  - Baltimore
PB  - Williams and Wilkins Co.
KW  - Soil Science
ER  -