Gumbrell, 1997. New Zealand Vet. J., 45 (6): 217-221 Document reference Gumbrell, R. C., 1997. Redgut in sheep: A disease with a twist. New Zealand Vet. J., 45 (6): 217-221Web https://doi.org/10.1080/00480169.1997.36033Citation key Gumbrell, 1997Datasheets Bur clover (Medicago polymorpha)