Briseño de la Hoz, Víctor Manuel. Grazing studies with sheep and cattle - Aberystwyth : The author, 1980 - 201 h. ; gráfs. Tesis (Magister in Scientia) -- University of Wales LCCN: 24296 Subjects--Topical Terms: Ganado lanar--Pastoreo.Ganado vacuno--Pastoreo.