National Council of Applied Economic Research. (1980). Implications of tractorisation for farm employment, productivity, and income. National Council of Applied Economic Research.
Chicago-referens (17:e uppl.)National Council of Applied Economic Research. Implications of Tractorisation for Farm Employment, Productivity, and Income. New Delhi: National Council of Applied Economic Research, 1980.
MLA-referens (8:e uppl.)National Council of Applied Economic Research. Implications of Tractorisation for Farm Employment, Productivity, and Income. National Council of Applied Economic Research, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.