Frisch, A. Essentian system administration (3a ed.).
芝加哥风格引文Frisch, AEleen. Essentian System Administration. 3a ed.
MLA引文Frisch, AEleen. Essentian System Administration. 3a ed.
警告：这些引文格式不一定是100％准确.
APA引文
Frisch, A. Essentian system administration (3a ed.).
芝加哥风格引文Frisch, AEleen. Essentian System Administration. 3a ed.
MLA引文Frisch, AEleen. Essentian System Administration. 3a ed.