Action for the climate : elementary school de Bouwsteen in 's Gravendeel by Kingma Roorda architectsAt the plateThe appendixA Country house at Maasdam Architect D. Visser B.N.A. at 's-GravendeelSurvey of functional exterior wallsYouth center in 's-GravendeelDesign of a single-family dwelling house in 's-GravendeelDesign for a police house in 's-GravendeelPolice StationCountry house in 's-GravendeelDesign of a country cottage at 's-GravendeelSketch design of a country house at 's-Gravendeel