International Symposium on Horticultural Economics in Developing Countries Alemaya, Ethiopia, International Society for Horticultural Science, Verhaegh, A. P., & Jager, A. d. (1991). First International Symposium on Horticultural Economics in Developing Countries: Alemaya, Ethiopia, 16-23 July 1989. International Society for Horticultural Science.
Chicago Style (17th ed.) CitationInternational Symposium on Horticultural Economics in Developing Countries Alemaya, Ethiopia, International Society for Horticultural Science, A. P. Verhaegh, and Anton de Jager. First International Symposium on Horticultural Economics in Developing Countries: Alemaya, Ethiopia, 16-23 July 1989. [Wageningen, Netherlands: International Society for Horticultural Science, 1991.
MLA引文International Symposium on Horticultural Economics in Developing Countries Alemaya, Ethiopia, et al. First International Symposium on Horticultural Economics in Developing Countries: Alemaya, Ethiopia, 16-23 July 1989. International Society for Horticultural Science, 1991.