Lua APA (7ú heag.)
Gupta, S. P., & Gupta, M. P. (2010). Business statistics (16th ed.). Sultan Chand & sons.
Lua i Stíl Chicago (17ú heag.)
Gupta, S. P., agus M. P. Gupta. Business Statistics. 16th ed. New Delhi: Sultan Chand & sons, 2010.
Lua MLA (9ú heag.)
Gupta, S. P., agus M. P. Gupta. Business Statistics. 16th ed. Sultan Chand & sons, 2010.
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