Edwards, N. John Frost and the Chartist movement in Wales. Western Valleys Labour Classes.
芝加哥风格引文Edwards, Ness. John Frost and the Chartist Movement in Wales. Abertillery: Western Valleys Labour Classes.
MLA引文Edwards, Ness. John Frost and the Chartist Movement in Wales. Western Valleys Labour Classes.
警告：这些引文格式不一定是100％准确.