Pickering, O. S. Sir Michael Sadler, a bibliography of his published works, 1982 (subj.) t.p. (Sir Michael Sadler) p. 4 of cover (Sir Michael Sadler, 1861-1943)
Moral instruction and training in schools, 1908 t.p. (M.E. Sadler)
BL database, 14 May 2007 (hdg.: Sadler, Michael Ernest, Sir, K.C.S.I.)