Patel, G. A. (1977). Gujarat's agriculture. Overseas Book Traders : sole distributors, Cosmic Publications.
Lua i Stíl Chicago (17ú heag.)Patel, Gunavant A. Gujarat's Agriculture. Ahmadabad: Overseas Book Traders : sole distributors, Cosmic Publications, 1977.
Lua MLA (8ú heag.)Patel, Gunavant A. Gujarat's Agriculture. Overseas Book Traders : sole distributors, Cosmic Publications, 1977.
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