Koch, E. (1985). Officialisation of cooperatives in developing countries. Fridrich-Ebert-Stiftung.
芝加哥风格引文Koch, Eckard. Officialisation of Cooperatives in Developing Countries. Bonn: Fridrich-Ebert-Stiftung, 1985.
MLA引文Koch, Eckard. Officialisation of Cooperatives in Developing Countries. Fridrich-Ebert-Stiftung, 1985.
警告：这些引文格式不一定是100％准确.