@book{20218,
	author = {Diggins, Ronald V. and Bundy, Clarence E.},
	title = {Dairy production},
	publisher = {Prentice-Hall,},
	year = {1979},
	series = {Vocational agricultural series},
	address = {Englewood Cliffs, N.J. :},
	edition = {4 ed.}
}