Eleventh Congress on Irrigation and Drainage = Onzieme Congres des Irrigations et du Drainage / International Commission on Irrigation and Drainage, Transactions : Question 36 = Compte-rendu ; Vol. 2: [Improvement and modernization of existing irrigation and drainage systems]

International Commission on Irrigation and Drainage | TIBKAT | 1981

Eleventh Congress on Irrigation and Drainage = Onzieme Congres des Irrigations et du Drainage / International Commission on Irrigation and Drainage ; Vol. 1: Transactions

TIBKAT | 1981

Transactions // Third Congress on Irrigation and Drainage = Compte rendu // Troisieme Congrès des Irrigations et du Drainage / International Commission on Irrigation and Drainage ; Vol. 2

International Commission on Irrigation and Drainage | TIBKAT | 1957

Transactions // Seventh Congress on Irrigation and Drainage = Compte rendu // Septième Congrès des Irrigations et du Drainage / International Commission on Irrigation and Drainage ; Vol. 4: Question 24

International Congress on Irrigation and Drainage / International Commission on Irrigation and Drainage | TIBKAT | 1969

Transactions // Seventh Congress on Irrigation and Drainage = Compte rendu // Septième Congrès des Irrigations et du Drainage / International Commission on Irrigation and Drainage ; Vol. 2: Question 23

International Congress on Irrigation and Drainage / International Commission on Irrigation and Drainage | TIBKAT | 1969