Tobacco soil and fertilizers
Newman, L.H.
Tobacco soil and fertilizers - Ottawa 1940 - 1-4 p. - Tobacco, Soil, Fertilizers Canada Department of Agriculture. Publication No. 703 .
Tobacco soil and fertilizers - Ottawa 1940 - 1-4 p. - Tobacco, Soil, Fertilizers Canada Department of Agriculture. Publication No. 703 .