Gill, K. S. (1993). A growing agricultural economy: Technological changes, constraints and sustainability. Oxford.
Chicago-stil citatGill, Khem Singh. A Growing Agricultural Economy: Technological Changes, Constraints and Sustainability. New Delhi: Oxford, 1993.
MLA-referensGill, Khem Singh. A Growing Agricultural Economy: Technological Changes, Constraints and Sustainability. Oxford, 1993.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.