Разширено търсене
Класификационен индекс да съдържа Г633и1
Пр II 720
Каталог "Книги"
Farm water management seminar Manila
Report of FAO/UNDP seminar on measures to accelerate benefits from water development projects by improved irrigation, drainage and water use at the farm level. Quezon City (Manila), Philippines 7-16 October 1970
(1972)