Sys, C., Van Ranst, E., & Debaveye, J. (1991). Land evaluation: Methods in land evaluation. Brussels: Central Administration for Development Cooperation.
Citación estilo ChicagoSys, C., E. Van Ranst, and J. Debaveye. Land Evaluation: Methods in Land Evaluation. Brussels: Central Administration for Development Cooperation, 1991.
Cita MLASys, C., E. Van Ranst, and J. Debaveye. Land Evaluation: Methods in Land Evaluation. Brussels: Central Administration for Development Cooperation, 1991.
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