Lua APA (7ú heag.)

Sheth, J. &. S. (2013). The 4 A's of marketing. Routledge.

Lua i Stíl Chicago (17ú heag.)

Sheth, Jagdish & Sisadia. The 4 A's of Marketing. New York: Routledge, 2013.

Lua MLA (9ú heag.)

Sheth, Jagdish & Sisadia. The 4 A's of Marketing. Routledge, 2013.

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