@conference {38884,
	title = {The accuracy of various methods of estimating a dairy cow{\textquoteright}s production of milk and butterfat},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {6},
	year = {1946},
	month = {Jan},
	pages = {99-104},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {Campbell IL}
}
