Feder, G., Lau, L. J., & Slade, R. (1985). The impact of agricultural extension: A case study of the training and visit system in Haryana, India (1. print.). World Bank.
Chicago-Zitierstil (17. Ausg.)Feder, Gershon, Lawrence J. Lau, und Roger Slade. The Impact of Agricultural Extension: A Case Study of the Training and Visit System in Haryana, India. 1. print. Washington, DC: World Bank, 1985.
MLA-Zitierstil (9. Ausg.)Feder, Gershon, et al. The Impact of Agricultural Extension: A Case Study of the Training and Visit System in Haryana, India. 1. print. World Bank, 1985.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.