Symposium on Horticultural Economics Hamburg, Germany, Schenk, E. W., & Ostendorf, H. D. (1983). Seventh Symposium on Horticultural Economics: 21st International Horticultural Congress, 29 August -4 September 1982, Hamburg, Fed. Rep. of Germany. International Society for Horticultural Science, Commission for Horticultural Economics.
Cytowanie według stylu Chicago (wyd. 17)Symposium on Horticultural Economics Hamburg, Germany, E. W. Schenk, i H. D. Ostendorf. Seventh Symposium on Horticultural Economics: 21st International Horticultural Congress, 29 August -4 September 1982, Hamburg, Fed. Rep. of Germany. Wageningen, Netherlands: International Society for Horticultural Science, Commission for Horticultural Economics, 1983.
Cytowanie według stylu MLA (wyd. 8)Symposium on Horticultural Economics Hamburg, Germany, et al. Seventh Symposium on Horticultural Economics: 21st International Horticultural Congress, 29 August -4 September 1982, Hamburg, Fed. Rep. of Germany. International Society for Horticultural Science, Commission for Horticultural Economics, 1983.