por Sowton, Chris [autor].
por Bonnet, Alastair [autor] | Bonnet, Alastair. How to argue : essential skills for writing and speaking convincingly | Flores, Francisco Fernando de [traductor].
por Creme, Phyllis, 1942- [autor] | Lea, Mary Rosalind, 1950- [autor] | Ventureira, Gabriela [traductor].