Citazione Stile APA (7a Edizione)
King, F., & Cree, D. (1992). English business letters: Commercial correspondence for foreign students (1.ed.). Longman Group UK.
Citazione stile Chigago Style (17a edizione)
King, F.W, e D.Ann Cree. English Business Letters: Commercial Correspondence for Foreign Students. 1.ed. Essex: Longman Group UK, 1992.
Citatione MLA (9a ed.)
King, F.W, e D.Ann Cree. English Business Letters: Commercial Correspondence for Foreign Students. 1.ed. Longman Group UK, 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.