Ruthenberg, H. (1968). Smallholder farming and smallholder development in Tanzania: Ten case studies. Weltforum Verlag.
芝加哥风格引文Ruthenberg, Hans. Smallholder Farming and Smallholder Development in Tanzania: Ten Case Studies. Munchen: Weltforum Verlag, 1968.
MLA引文Ruthenberg, Hans. Smallholder Farming and Smallholder Development in Tanzania: Ten Case Studies. Weltforum Verlag, 1968.
警告：这些引文格式不一定是100％准确.