International Labour Office. (1960). Why labour leaves the land: A comparative study of the movement of labour out of agriculture. International Labour Office.
芝加哥风格引文International Labour Office. Why Labour Leaves the Land: A Comparative Study of the Movement of Labour Out of Agriculture. Geneva: International Labour Office, 1960.
MLA引文International Labour Office. Why Labour Leaves the Land: A Comparative Study of the Movement of Labour Out of Agriculture. International Labour Office, 1960.
警告：这些引文格式不一定是100％准确.