Hume, G. (1997). Manual of commercial correspondance. A.H.Wheeler.
Citación estilo ChicagoHume, G. Manual of Commercial Correspondance. New Delhi: A.H.Wheeler, 1997.
Cita MLAHume, G. Manual of Commercial Correspondance. A.H.Wheeler, 1997.
Warning: These citations may not always be 100% accurate.