Cita APA (7a ed.)
King, F., & Cree, D. (1992). English business letters: Commercial correspondence for foreign students (1.ed.). Longman Group UK.
Cita Chicago Style (17a ed.)
King, F.W, y D.Ann Cree. English Business Letters: Commercial Correspondence for Foreign Students. 1.ed. Essex: Longman Group UK, 1992.
Cita MLA (9a ed.)
King, F.W, y D.Ann Cree. English Business Letters: Commercial Correspondence for Foreign Students. 1.ed. Longman Group UK, 1992.
Precaución: Estas citas no son 100% exactas.