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1982
The effects of drenching regimen and pasture larval contamination on gastrointestinal parasitism of lambs, KF, Thompson, WH Risk, PC Mason, and S Crosbie , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 42, p.189-192, (1982)
1980
The control of internal parasites in lambs by grazing management, KHC, Lewis, and PC Mason , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 40, p.18-22, (1980)