The diffusion of the tractor in American agriculture : 1910-60

Библиографические подробности
Главный автор:	Olmstead, Alan L.
Другие авторы:	Rhode, Paul Webb
Формат:	‌
Язык:	English
Опубликовано:	Cambridge National Bureau of Economic Research 2000.
Серии:	NBER working paper series no.7947
Предметы:	Farm tractors > History. > United States. Agriculture > Economic aspects > History. > United States. Diffusion of innovations > History. > United States. Capital investments > History. > United States.