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.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Symposium on Horticultural Economics Davis, Calif, International Society for Horticultural Science. Commission for Horticultural Economics and Management, International Horticultural Congress, và 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.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)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.