@conference {39470,
	title = {Onset of puberty in Angus, Friesian, Friesian x Angus, and Friesian x Jersey heifers},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {35},
	year = {1975},
	month = {Jan},
	pages = {97-102},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {Pleasants AB and Hight GK and Barton RA}
}
