[1]
Ettala, T., Seuranen, A. and Kreula, M. 1980. The composition of the faecal microbial flora of milking cows on feeds containing urea as the sole or partial source of nitrogen . Agricultural and Food Science. 52, 1 (Jan. 1980), 59–68. DOI:https://doi.org/10.23986/afsci.72031.