Macdonald, T.O.R., J.S. Rowarth, and F.G. Scrimgeour. 2015. “Measuring the Cost of Environmental Compliance for Waikato Dairy Farmers - a Survey Approach”. Journal of New Zealand Grasslands 77 (January):159-66. https://doi.org/10.33584/jnzg.2015.77.476.