Development of sample surveys for the estimation of agricultural production in the United Arab Republic / a review of the work done during the period Jul 1955 - Apr 1962/.

advisory officers agricultural sector arroz cebolla conseiller agricole coton cotton encuestas experimentation farm area fauchage forecasting formation haricot commun kidney beans mais maize milk yield mowing muestreo oignon onions papa pomme de terre potatoes production rendement laitier rendimiento lechero rice riz sampling scientifique scientists secteur agricole sector agrario service services servicios siega statistical methods surface d'exploitation surveys training trigo wheats