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1977
Effect of breed of ram on the onset of the breeding season in Romney ewes, HR Tervit, PG Havik, and JF Smith , Proceedings of the New Zealand Society of Animal Production, Volume 37, p.142-148, (1977) , (Full PDF)
1976
Egg Transfers in Exotic Sheep, HR Tervit, AJ Allison, JF Smith, TM Harvey, and PG Havik , Proceedings of the New Zealand Society of Animal Production, Volume 36, p.67-75, (1976) , (Full PDF)