Symposium on Horticultural Economics Davis, Calif, International Society for Horticultural Science. Commission for Horticultural Economics and Management, International Horticultural Congress, & Goodrich, D. C. (1987). Ninth Symposium on Horticultural Economics: 22nd International Horticultural Congress, Davis, California, USA, August 11-20th, 1986. International Society for Horticultural Science.
Παραπομπή σε μορφή Chicago (17η εκδ.)Symposium on Horticultural Economics Davis, Calif, International Society for Horticultural Science. Commission for Horticultural Economics and Management, International Horticultural Congress, και Dana C. Goodrich. Ninth Symposium on Horticultural Economics: 22nd International Horticultural Congress, Davis, California, USA, August 11-20th, 1986. Wageningen, Netherlands: International Society for Horticultural Science, 1987.
Παραπομπή σε μορφή MLA (8th εκδ.)Symposium on Horticultural Economics Davis, Calif, et al. Ninth Symposium on Horticultural Economics: 22nd International Horticultural Congress, Davis, California, USA, August 11-20th, 1986. International Society for Horticultural Science, 1987.