Cita APA (7a ed.)
Adrian Wallwork. English for Academic Correspondence and Socializing. Springer.
Cita estilo Chicago (17a ed.)
Adrian Wallwork. English for Academic Correspondence and Socializing. Nueva York, EUA: Springer.
Cita MLA (9a ed.)
Adrian Wallwork. English for Academic Correspondence and Socializing. Springer.
Precaución: Estas citas no son 100% exactas.