JHINGAN, M. L. (2012). Principle of economics. Vrinda Publications.
Lua i Stíl Chicago (17ú heag.)JHINGAN, M. L. Principle of Economics. Vrinda Publications, 2012.
Lua MLA (9ú heag.)JHINGAN, M. L. Principle of Economics. Vrinda Publications, 2012.
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