Pringle, P. K., & Starr, M. F. a. M. (1999). Electronic media management (4th ed.). Focal press.
Lua i Stíl Chicago (17ú heag.)Pringle, Peter K., agus Michael F and McCavitt Starr. Electronic Media Management. 4th ed. Boston: Focal press, 1999.
Lua MLA (9ú heag.)Pringle, Peter K., agus Michael F and McCavitt Starr. Electronic Media Management. 4th ed. Focal press, 1999.
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