Citazione Stile APA (7a Edizione)
Alexander, L. G. (1983). First things first: Students' Book 1. An Integrated Course for Beginners (29.vyd.). Longman Group UK.
Citazione stile Chigago Style (17a edizione)
Alexander, Louis George. First Things First: Students' Book 1. An Integrated Course for Beginners. 29.vyd. Essex: Longman Group UK, 1983.
Citatione MLA (9a ed.)
Alexander, Louis George. First Things First: Students' Book 1. An Integrated Course for Beginners. 29.vyd. Longman Group UK, 1983.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.