Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Zacker, Craig. TCP/IP Administration. Foster City, CA: IDG Books Worldwide, 1998.

Cita MLA (9th ed.)

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