Παραπομπή APA

Blyn, G. (1966). Agricultural trends in India, 1891-47: Output availability and productivity. University of pensylvania.

Παραπομπή Chicago Style

Blyn, George. Agricultural Trends in India, 1891-47: Output Availability and Productivity. USA: University of pensylvania, 1966.

Παραπομπή MLA

Blyn, George. Agricultural Trends in India, 1891-47: Output Availability and Productivity. University of pensylvania, 1966.