Reference
Tanksley, 1990. In: Thacker, P. A.; Kirkwood, R. N. (Ed.), Non traditional feed sources for use in swine production: 139–151, Butterworth, Boston
Tanksley, 1990. In: Thacker, P. A.; Kirkwood, R. N. (Ed.), Non traditional feed sources for use in swine production: 139–151, Butterworth, Boston