MAHTA, S. C. (1980). Marketing Environment, Concepts And Cases Oleh Subhah C. Mehta Dan Kesahav Prasad. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)MAHTA, Subhash C. Marketing Environment, Concepts And Cases Oleh Subhah C. Mehta Dan Kesahav Prasad. McGraw-Hill, 1980.
Lua MLA (8ú heag.)MAHTA, Subhash C. Marketing Environment, Concepts And Cases Oleh Subhah C. Mehta Dan Kesahav Prasad. McGraw-Hill, 1980.
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