http://pec.lib.wvu.edu/record/P124111957Correlations between type components of Ayrshire heifers and cows.<p> Journal article reprint from: <em>Journal of Dairy Science</em>, v.40:no.6 (1957:June).</p>Dunbar, Robert Standish, 1921-Porterfield, I. D. (Ira Deward), 1920-Henderson, H. O.Cattle--Breeding.Ayrshire cattle.14256