TY - CHAP T1 - Mediaeval and Tudor Music and Musicians in Hertfordshire: The Graffiti Evidence T2 - Hertfordshire in History: Papers Presented to Lionel Munby Y1 - 1991 A1 - Jones-Barker, Doris ED - Jones-Barker, Doris JF - Hertfordshire in History: Papers Presented to Lionel Munby PB - Hertfordshire Local History Council CY - Hertford ER -