1. Potential Income From Increased Reproductive Efficiency;Lineweaver,1975
2. Losses in Yield Due to Excessive Days Open;Louca;Abstr. J. Dairy Sci.,1967
3. Milk Production and Costs Associated With Length of Calving Interval of Holstein Cows;Speicher;Abstr. J. Dairy Sci.,1967
4. Anestrus — The Practitioner's Dilema;Zemjanis;Veterinary Scope,1969
5. A Modified Herd Reproductive Status (HRS) Program for South Carolina Dairy Herds;Kelly,1974