Citazione Stile APA (7a Edizione)

OPEN UNIVERSITY. (1980). CASE STUDY STANDARD TELEPHONES AND CABLES. OPEN UNIVERSITY PRESS.

Citazione stile Chigago Style (17a edizione)

OPEN UNIVERSITY. CASE STUDY STANDARD TELEPHONES AND CABLES. MILTON KEYNES: OPEN UNIVERSITY PRESS, 1980.

Citatione MLA (9a ed.)

OPEN UNIVERSITY. CASE STUDY STANDARD TELEPHONES AND CABLES. OPEN UNIVERSITY PRESS, 1980.