@book{19934,
	author = {David, Martin, and Van Groningen, B.A.},
	title = {Papyrological primer.},
	publisher = {E.J. Brill,},
	year = {[c1946]},
	address = {Leyden,},
	edition = {2d (English) ed.,},
	note = {First ed. (Leiden, 1940), written in Dutch, has title: Papyrologiach leerboek.}
}