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Citace podle Chicago (17th ed.)International Symposium on Flower Bulbs Seattle, Wash, International Society for Horticultural Science. Section for Ornamental Plants, Gary A. Chastagner, Robert P. Doss, a Ralph S. Byther. Symposium on Flower Bulbs: Seattle, Washington, USA, 10-14 July 1989. Wageningen, Netherlands: International Society for Horticultural Science, 1990.
Citace podle MLA (8th ed.)International Symposium on Flower Bulbs Seattle, Wash, et al. Symposium on Flower Bulbs: Seattle, Washington, USA, 10-14 July 1989. International Society for Horticultural Science, 1990.