Cita APA (7a ed.)
Emmerson, P. (2010). Business grammmar builder: Intermediate to upper-intermediate (2nd ed.). Macmillan.
Cita Chicago Style (17a ed.)
Emmerson, Paul. Business Grammmar Builder: Intermediate to Upper-intermediate. 2nd ed. Oxford: Macmillan, 2010.
Cita MLA (9a ed.)
Emmerson, Paul. Business Grammmar Builder: Intermediate to Upper-intermediate. 2nd ed. Macmillan, 2010.
Precaución: Estas citas no son 100% exactas.