Gupta, O., & Abrol, P. (1989). Dictionary of commerce. Anmol.
Lua i Stíl Chicago (17ú heag.)Gupta, O.P, agus P.N Abrol. Dictionary of Commerce. New Delhi: Anmol, 1989.
Lua MLA (8ú heag.)Gupta, O.P, agus P.N Abrol. Dictionary of Commerce. Anmol, 1989.
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