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.
Citace podle Chicago (17th ed.)International Symposium on Horticultural Economics in Developing Countries Alemaya, Ethiopia, International Society for Horticultural Science, A. P. Verhaegh, a 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.
Citace podle MLA (8th ed.)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.