International Symposium Polders of the World ( 1982 : Lelystad, The Netherlands) creator text conference publication Wageningen ILRI 1982 monographic 3 v Contenido: v.1 Polder projects: Land and Water management aspects.- v.2 Polder agricultural socio-economic and physical planning environmental aspects.- v.3 late papers Suelos de Polder Suelos salinos Suelos Holanda Tierras Recuperación de Tierras Utilización 631.4 I57 26331 971013 20220329134817.0