胡卡比 & 加诺. (2013). CCNP安全防火墙642-618认证考试指南: CCNP security FIREWALL 642-618 of ficial cert guide. 人民邮电出版社.
Chicago Style aipamena胡卡比 and 加诺. CCNP安全防火墙642-618认证考试指南: CCNP Security FIREWALL 642-618 of Ficial Cert Guide. 人民邮电出版社, 2013.
MLA aipamena胡卡比 and 加诺. CCNP安全防火墙642-618认证考试指南: CCNP Security FIREWALL 642-618 of Ficial Cert Guide. 人民邮电出版社, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.