Wallace, Marjorie. The silent twins / Marjorie Wallace. - London : Chatto & Windus, 1986. - 230 p., [8] p. of plates : ill. ; 24 cm. ISBN: 0701127120 Subjects--Personal Names: Gibbons JenniferGibbons JuneGibbons family Subjects--Topical Terms: Twins--Biography Subjects--Geographic Terms: Wales--Biography LC Class. No.: WZ