APA引文

Schmidt; Friend. IP Telephony Using CallManager Express Lab Portfolio (1.). Pearson India.

Chicago Style (17th ed.) Citation

Schmidt; Friend. IP Telephony Using CallManager Express Lab Portfolio. 1. Pearson India.

MLA引文

Schmidt; Friend. IP Telephony Using CallManager Express Lab Portfolio. 1. Pearson India.

警告：這些引文格式不一定是100％准確.