Echeverría, R. G. (1990). Methods for diagnosing research system constraints and assessing the impact of agricultural research: Proceedings of the ISNAR/Rutgers Agricultural Technology Management Workshop, Rutgers Univ., N. J., USA, 6 - 8 July 1988. International Service for National Agricultural Research.
Chicago-Zitierstil (17. Ausg.)Echeverría, Ruben G. Methods for Diagnosing Research System Constraints and Assessing the Impact of Agricultural Research: Proceedings of the ISNAR/Rutgers Agricultural Technology Management Workshop, Rutgers Univ., N. J., USA, 6 - 8 July 1988. Hague: International Service for National Agricultural Research, 1990.
MLA-Zitierstil (9. Ausg.)Echeverría, Ruben G. Methods for Diagnosing Research System Constraints and Assessing the Impact of Agricultural Research: Proceedings of the ISNAR/Rutgers Agricultural Technology Management Workshop, Rutgers Univ., N. J., USA, 6 - 8 July 1988. International Service for National Agricultural Research, 1990.