De circulo. Add to clipboard GB 2014 WS-01-BUS-HH/1/9 Item 1619 Part of Westminster School's Archive and Collections Ceulen, Ludolph van, 1539-1610
De arithmetische en geometrische fondamenten Add to clipboard GB 2014 WS-01-BUS-HH/4/19 Item 1615 Part of Westminster School's Archive and Collections Ceulen, Ludolph van, 1539-1610