* Barbara Castle, Sylvia and Christabel Pankhurst ( Penguin Books, 1987 ) ISBN 0-14-008761-3
* Barbara Castle, Sylvia and Christabel Pankhurst ( Penguin Books, 1987 ) ISBN 978-0-14-008761-1.
0.040 seconds.
* Barbara Castle, Sylvia and Christabel Pankhurst ( Penguin Books, 1987 ) ISBN 0-14-008761-3
* Barbara Castle, Sylvia and Christabel Pankhurst ( Penguin Books, 1987 ) ISBN 978-0-14-008761-1.
0.040 seconds.