HHBJ MathematicsHBJ Mathematicsde Daphne KerslakeEdiciones (1)HBJ Mathematics Year 1 (1990)HarperCollins Publishers · ISBN 9780746602119Más obras de Daphne KerslakeHHBJ mathematicsHBJ mathematicsHHBJ mathematicsHBJ mathematicsHHBJ mathematicsHBJ mathematics