O'Keefe, S. (1997). Publicity on the Internet: Creating successful publicity campaigns on the Internet an the commercial online services. [S.n.].
Cita Chicago Style (17a ed.)O'Keefe, Steve. Publicity on the Internet: Creating Successful Publicity Campaigns on the Internet an the Commercial Online Services. Nueva York: [S.n.], 1997.
Cita MLA (9a ed.)O'Keefe, Steve. Publicity on the Internet: Creating Successful Publicity Campaigns on the Internet an the Commercial Online Services. [S.n.], 1997.
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