@book{20854,
	author = {Tolansky, S.},
	title = {Hyperfine structure in line spectra and nuclear spin / },
	publisher = {Methuen ;},
	year = {1948 ( 1953 printing ).},
	series = {Methuen's monographs on physical subjects},
	address = {London :},
	edition = {2nd ed, rev. and enl.}
}