@book{20556,
	author = {Tarrant, G. T. P. },
	title = {Electricity, magnetism and modern physics :},
	publisher = { J.M. Dent,},
	year = {1948 (printing1949).},
	series = {Dent's modern science series.},
	address = {London :},
	note = {Being vol. II of physics.}
}