por Hardisty, David [autor] | Windeatt, David [autor] | University of Oxford.
por Wajnryb, Ruth [autor] | University of Oxford.
por Duff, Alan, 1942- [autor] | Maley, Alan, 1937- [autor] | University of Oxford.
por Murphey, Tim [autor] | University of Oxford.
por Ladousse, Gillian Porter [autor] | University of Oxford.
por Sheerin, Susan [autor] | University of Oxford.
por Hedge, Tricia [autor] | University of Oxford.