Cates, W., & Christensen, D. (1983). The Effect of Nutrition on Conception Rate in Beef Cows at Cumberland House, Saskatchewan.
استشهاد بنمط شيكاغوCates, W.F., و D.A Christensen. The Effect of Nutrition On Conception Rate in Beef Cows At Cumberland House, Saskatchewan. 1983.
MLA استشهادCates, W.F., و D.A Christensen. The Effect of Nutrition On Conception Rate in Beef Cows At Cumberland House, Saskatchewan. 1983.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.