Report on the cost of production of maize investigation for the season 1921-22
Parish, E.
Report on the cost of production of maize investigation for the season 1921-22 - Pretoria 1924 - 1-45 p. - Cost, Production, Maize Union of South Africa Department of Agriculture. Science Bulletin No. 33 .
Report on the cost of production of maize investigation for the season 1921-22 - Pretoria 1924 - 1-45 p. - Cost, Production, Maize Union of South Africa Department of Agriculture. Science Bulletin No. 33 .