Symposium on Winter Hardiness in Woody Perennials Piikiö, Finland, International Society for Horticultural Science. Section for Fruit, International Society for Horticultural Science. Working Group Winterhardiness in Woody Perrennials, Holubowicz, T., & Säkö, J. (1985). Second Symposium on Winterhardiness in Woody Perennials: Piikiö, Finland, 13-17 August 1984. ISHS].
Παραπομπή σε μορφή Chicago (17η εκδ.)Symposium on Winter Hardiness in Woody Perennials Piikiö, Finland, International Society for Horticultural Science. Section for Fruit, International Society for Horticultural Science. Working Group Winterhardiness in Woody Perrennials, T. Holubowicz, και J. Säkö. Second Symposium on Winterhardiness in Woody Perennials: Piikiö, Finland, 13-17 August 1984. [Wageningen, Netherlands: ISHS], 1985.
Παραπομπή σε μορφή MLA (8th εκδ.)Symposium on Winter Hardiness in Woody Perennials Piikiö, Finland, et al. Second Symposium on Winterhardiness in Woody Perennials: Piikiö, Finland, 13-17 August 1984. ISHS], 1985.