Du Plessis, J. L., & Van Gas, L. (1989). Immunity of tick-exposed seronegative and seropositive small stock challenged with two stocks of Cowdria ruminantium. Onderstepoort journal of veterinary research, 56(3), 185.
Chicago Style (17th ed.) CitationDu Plessis, J L., and L. Van Gas. "Immunity of Tick-exposed Seronegative and Seropositive Small Stock Challenged with Two Stocks of Cowdria Ruminantium." Onderstepoort Journal of Veterinary Research 56, no. 3 (1989): 185.
MLA (9th ed.) CitationDu Plessis, J L., and L. Van Gas. "Immunity of Tick-exposed Seronegative and Seropositive Small Stock Challenged with Two Stocks of Cowdria Ruminantium." Onderstepoort Journal of Veterinary Research, vol. 56, no. 3, 1989, p. 185.
Warning: These citations may not always be 100% accurate.