Laitinen, J. (1983). Oestrus confirmation, pregnancy diagnosis and postpartum ovarian follow-up of the Finnish dairy cows by milk progesterone assay: Effects of breed, season, feed and sampling on milk progesterone levels. University of Kuopio.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Laitinen, Jarmo. Oestrus Confirmation, Pregnancy Diagnosis and Postpartum Ovarian Follow-up of the Finnish Dairy Cows by Milk Progesterone Assay: Effects of Breed, Season, Feed and Sampling on Milk Progesterone Levels. Kuopio: University of Kuopio, 1983.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Laitinen, Jarmo. Oestrus Confirmation, Pregnancy Diagnosis and Postpartum Ovarian Follow-up of the Finnish Dairy Cows by Milk Progesterone Assay: Effects of Breed, Season, Feed and Sampling on Milk Progesterone Levels. University of Kuopio, 1983.