(Dublin, 1997) ISBN 0-7171-2683-8* "Temples of Convenience - And Chambers of Delight" by Lucinda Lambton (NPI Media Group, 2006) ISBN 0-7524-3893-X* "Thunder, Flush and Thomas Crapper" by Adam Hart-Davis (Michael O'Mara Books, 1997), ISBN 1-57076-081-0.
(Dublin,1997) ISBN 0-7171-2683-8* "Temples of Convenience — And Chambers of Delight" by Lucinda Lambton (NPI Media Group, 2006) ISBN 0-7524-3893-X* "Thunder, Flush and Thomas Crapper" by Adam Hart-Davis (Michael O’Mara Books, 1997), ISBN 1-57076-081-0.