Witsen, P. P. (2015). A Calm Stone Carpet: The design for Wilhelminaplein in Leeuwarden has brought a politically controversial urban project to a satisfactory conclusion. Topos.
Chicago-Zitierstil (17. Ausg.)Witsen, Peter Paul. "A Calm Stone Carpet: The Design for Wilhelminaplein in Leeuwarden Has Brought a Politically Controversial Urban Project to a Satisfactory Conclusion." Topos 2015.
MLA-Zitierstil (8. Ausg.)Witsen, Peter Paul. "A Calm Stone Carpet: The Design for Wilhelminaplein in Leeuwarden Has Brought a Politically Controversial Urban Project to a Satisfactory Conclusion." Topos, 2015.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.