Citazione Stile APA (7a Edizione)
Alexander, L. G. (1967). First Things First Students Book: An Integrated Course for Beginners. Longman Group UK.
Citazione stile Chigago Style (17a edizione)
Alexander, Louis George. First Things First Students Book: An Integrated Course for Beginners. London: Longman Group UK, 1967.
Citatione MLA (9a ed.)
Alexander, Louis George. First Things First Students Book: An Integrated Course for Beginners. Longman Group UK, 1967.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.