RANDALL, G. (1993). Principles Of Marketing Geoffrey Randall. Routledge.
Lua i Stíl Chicago (17ú heag.)RANDALL, Geoffrey. Principles Of Marketing Geoffrey Randall. Routledge, 1993.
Lua MLA (8ú heag.)RANDALL, Geoffrey. Principles Of Marketing Geoffrey Randall. Routledge, 1993.
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