Citazione Stile APA (7a Edizione)

HUGHES,E. (1987). ELECTRICAL TECHNOLOGY 6TH ED. LONGMAN GROUPS ELBS.

Citazione stile Chigago Style (17a edizione)

HUGHES,E. ELECTRICAL TECHNOLOGY 6TH ED. U K: LONGMAN GROUPS ELBS, 1987.

Citatione MLA (9a ed.)

HUGHES,E. ELECTRICAL TECHNOLOGY 6TH ED. LONGMAN GROUPS ELBS, 1987.