RC, B., SH, C., KN, G., LD, W., & CL, G. (2007). Effect of twin birth calvings on milk production, reproductive performance, and survival of lactating cows. Journal of the American Veterinary Medical Association, 231(9), 1390. https://doi.org/10.2460/javma.231.9.1390
Chicago Style (17th ed.) CitationRC, Bicalho, Cheong SH, Galvão KN, Warnick LD, and Guard CL. "Effect of Twin Birth Calvings on Milk Production, Reproductive Performance, and Survival of Lactating Cows." Journal of the American Veterinary Medical Association 231, no. 9 (2007): 1390. https://doi.org/10.2460/javma.231.9.1390.
MLA (9th ed.) CitationRC, Bicalho, et al. "Effect of Twin Birth Calvings on Milk Production, Reproductive Performance, and Survival of Lactating Cows." Journal of the American Veterinary Medical Association, vol. 231, no. 9, 2007, p. 1390, https://doi.org/10.2460/javma.231.9.1390.