TY  - BOOK
ED  - Canada.
TI  - Conservation of soil fertility and soil fibre: Report of conference held at Winnipeg, Maintoba, July 14, 15 and 16, 1920 ..
AV  - S599.C3 A5 1920
PY  - 1920///
CY  - Ottawa
PB  - T. Mulvey, printer
KW  - Agriculture
KW  - Canada
KW  - Soils
N1  - At head of title: Commission of conservation, Canada
ER  -