Style de citation APA

Không rõ. (1993). Digital and Anolog Communication Systems. NOTNXB.

Style de citation Chicago

Không rõ. Digital and Anolog Communication Systems. NOTNXB, 1993.

Style de citation MLA

Không rõ. Digital and Anolog Communication Systems. NOTNXB, 1993.

Attention : ces citations peuvent ne pas être correctes à 100%.