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1966
Eradication of Brucellosis from the New Zealand cattle population, CSM Hopkirk , Proceedings of the New Zealand Society of Animal Production, Volume 26, p.125-133, (1966) , (Full PDF)
1952
Memorial Address: John Anderson Gilruth, CSM Hopkirk , Proceedings of the New Zealand Society of Animal Production, Volume 12, p.10-15, (1952) , (Full PDF)
1945
Vaccination as a method of control of stock diseases in New Zealand, CSM Hopkirk , Proceedings of the New Zealand Society of Animal Production, Volume 5, p.72-78, (1945) , (Full PDF)
1943
The spread and control of Mastitis, CSM Hopkirk , Proceedings of the New Zealand Society of Animal Production, Volume 3, p.43-51, (1943) , (Full PDF)