Toulmin, C.

Toulmin, C. & Tiffen, M., 1987. Groundwater management : equity, feasibility and efficiency : a discussion paper, (ODI/IIMI Irrigation Management Network / network paper no. 87/1e) London, UK: Overseas Development Institute (ODI). Available at: https://es.ircwash.org/sites/default/files/212.0-87GR-3915.pdf.