Cita APA (7a ed.)

Zacker, C. (1998). TCP-IP administration. IDG Books Worldwide.

Cita Chicago Style (17a ed.)

Zacker, Craig. TCP-IP Administration. Foster City, California [etc.]: IDG Books Worldwide, 1998.

Cita MLA (9a ed.)

Zacker, Craig. TCP-IP Administration. IDG Books Worldwide, 1998.