1. Statistical Procedures;Alder,1961
2. Association of Official Agricultural Chemists. 1960. Methods of Analysis. 9th ed. Washington, D.C.
3. Least-cost formulation of beef cattle rations;Bath,1966
4. Least-cost formulation of dairy concentrate mixes;Bath,1966
5. Tests of significance in reversal or switchback trials;Brandt;Iowa Agr. Exp. Sta., Res. Bull.,1938