Calles et al., 1982. Informe anual 1982, 41-42 Document reference Calles, P. ; Martinez, A. ; Tovar, J. ; Escobar, A, 1982. Effect of growth stimulants on heifers fed forage of differing nutritive value. Informe anual 1982, 41-42Citation key Calles et al., 1982
