@book{9072,
	author = {Groot, S. R. de and Suttorp, L. G.},
	title = {Foundations of electrodynamics.},
	publisher = {Noord-Hollandsche U.M.,},
	year = {1972.},
	address = {Amsterdam :},
	note = {On verso of t.p.: Sole distributor for the U.S.A: American Elsevier Pub. Co., New York.}
}