R. R. Wheeler, Weswig, P. H., Brannon, W. F., Hubbert, F., and Sawyer, W. A.,
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Journal of Animal Science, vol. 16, no. 2, pp. 525 - 536, 1957.
J. D. Wallace, Hubbert, F., and Raleigh, R. J.,
“The Response of Yearling Cattle on Crested Wheatgrass Pasture to Energy, Protein and Sodium Supplementation”,
Journal of Range Management, vol. 16, no. 1, p. 1, 1963.