Department of Dairy Husbandry
milk vitamin D content, milk nutrition, seasonal nutritional value of milk, feedstuffs nutritional value on milk
South Dakota Experiment Station, South Dakota State College of Agriculture and Mechanical Arts
Wallis, G. C. and Olson, T. M., "The Effects of Season and Feeds on the Vitamin D Content of Milk Under South Dakota Conditions" (1938). Research Bulletins of the South Dakota Agricultural Experiment Station (1887-2011). 321.