“Evaluation of the Azotest Strip As Recommended for the Estimation of Milk Urea Nitrogen Concentrations in Individual Cow, Milk Line and Bulk Tank Samples”. The Bovine Practitioner 37, no. 1 (February 1, 2003): 36–42. Accessed November 21, 2024. https://bovine-ojs-tamu.tdl.org/bovine/article/view/1783.