Não informado. (1960). Bibliography. International Institute for Land Reclamation and Improvement.
Style de citation Chicago (17e éd.)Não informado. Bibliography. Wageningen, Holanda: International Institute for Land Reclamation and Improvement, 1960.
Style de citation MLA (8e éd.)Não informado. Bibliography. International Institute for Land Reclamation and Improvement, 1960.
Attention : ces citations peuvent ne pas être correctes à 100%.