Lena, H., & Charlotte, S. (2003). Evaluation of the Economic Return of Preventive Health Care (FRISKKO) at Herd Level in Dairy Herds in Sweden. BMC.
استشهاد بنمط شيكاغوLena, Hult, و Sandgren Charlotte. Evaluation of the Economic Return of Preventive Health Care (FRISKKO) At Herd Level in Dairy Herds in Sweden. BMC, 2003.
MLA استشهادLena, Hult, و Sandgren Charlotte. Evaluation of the Economic Return of Preventive Health Care (FRISKKO) At Herd Level in Dairy Herds in Sweden. BMC, 2003.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.