The Achtermeer polder, south of Alkmaar in the Dutch province of North Holland, is the first known polder in the Netherlands.[1]
- ^ Reh, W., Steenbergen, C., Aten, D. 2007. Sea of Land, The polder as an experimental atlas of Dutch landscape architecture. 344 pp, Uitgeverij Architectura & Natura. ISBN 9789071123962