Vavra, M.; Rice, R.W.; Hansen, R.M. 1978. A comparison of esophageal fistula and fecal material to determine steer diets. Journal of Range Management. 31(1): 11-13.

Vavra, M.; Rice, R.W.; Hansen, R.M. 1978. A comparison of esophageal fistula and fecal material to determine steer diets. Journal of Range Management. 31(1): 11-13.

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