ISP Schiermonnikoog : inventory reportA study of the significance of foreigner traffic on Schiermonnikoog, in connection with the construction of a military training areaSchiermonnikoog : the island of gray monksFriesland and the islands of Ameland, Schiermonnikoog, Terschelling, Texel, Vlieland : propaganda publication with the consent and cooperation of various municipalities and V.V.V.'sI see, I see what ye see not : wanderings through our landNew atlas of the province of Friesland, containing maps of the thirty grietenijen or municipalities, with the eleven towns situated therein and its territory, as well as of the islands of Ameland and SchiermonnikoogLog cabin construction, stacking construction of solid wood