The old world background of the irrigation system of San Antonio, Texas / by Thomas F. Glick

Report of irrigation investigations in California /

"Historia natural de las Islas Canarias" de Philip Barker Webb y Sabino Berthelot : una introducción /

por Relancio Menéndez, Alberto

Water and power report : crop and related data appendix I /

The impossible dream by the Rio Grande : a documented chronicle of the establishment and annihilation of San Jose de Palafox /

Molinos de agua en Gran Canaria /

por Díaz Rodríguez, Juan M