APA引文

Không rõ. (1999). Principles of Digital Transmission. NOTNXB.

Trích dẫn kiểu Chicago

Không rõ. Principles of Digital Transmission. NOTNXB, 1999.

MLA引文

Không rõ. Principles of Digital Transmission. NOTNXB, 1999.

警告:這些引文格式不一定是100%准確.