Chemical weed control
Iversen, C.E.
Chemical weed control Part two - Christchurch 1953 - 1-6 p. - Chemical, Weed Canterbury Chamber of Commerce. Agricultural Bulletin No. 289 .
Chemical weed control Part two - Christchurch 1953 - 1-6 p. - Chemical, Weed Canterbury Chamber of Commerce. Agricultural Bulletin No. 289 .