TY - `BOOK` AU - Sanders, Ivor J. TI - Feudal military service in England : a study of the constitutional and military powers of the barones in medieval England PB - Oxford Univ. Press CY - London PY - 1956 LA - eng SE - XV, 173 S. CN - 62 A 423 CN - Ei 876 AN - UBHD-1070054 ER -