CRAVENS, D. W. (1982). Strategic Marketing David W. Cravens. Richard D. Irwin.
Lua i Stíl Chicago (17ú heag.)CRAVENS, David W. Strategic Marketing David W. Cravens. Richard D. Irwin, 1982.
Lua MLA (8ú heag.)CRAVENS, David W. Strategic Marketing David W. Cravens. Richard D. Irwin, 1982.
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