Forsyth, P., & Birn, R. (1997). Marketing in publishing. Routledge.
Lua i Stíl Chicago (17ú heag.)Forsyth, Patrick, agus Robin Birn. Marketing in Publishing. London ; New York: Routledge, 1997.
Lua MLA (9ú heag.)Forsyth, Patrick, agus Robin Birn. Marketing in Publishing. Routledge, 1997.
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