1. Statistical Reporting Service,1970
2. Environmental conditions in free-stall dairy barns;Boyd;Michigan Agr. Exp. Sta. Res. Rep.,1968
3. Boyd, J. S., and C. R. Hoglund. 1970. An efficient feeding system for dairy cattle. Paper 70-313 presented at Amer. Soc. Agr. Eng., July, 1970.
4. Milk production costs for Georgia higher producing herds;Brown;Georgia Agr. Exp. Sta. Bull. N. S.,1966
5. Telfarm business analysis summary for specialized southern dairy farms, 1969;Brown;Michigan Agr. Econ. Rep.,1970