@book{39857,
	author = {Waterink, J.},
	title = {Opdat zij licht zien /},
	publisher = {Zomer & Keuning,},
	year = {[1931]},
	address = {Wageningen :},
	edition = {2e dr.},
	note = {Reeds eeder verschenen schetsen in ''Op den Uitkijk''}
}