TY  - BOOK
AU  - Porter,H.C.
TI  - Soil survey, Loudoun County, Virginia
AV  - C1293.L5 P6 1960
PY  - 1960///
CY  - Washington]
PB  - U.S. Dept. of Agriculture, Soil Conservation Service
KW  - Soil surveys
KW  - Virginia
KW  - Loudoun County
N1  - Cover title; "Literature cited": p. 118
ER  -