Tye state forest committee of tye USSR & International union of forestry researcy organitations. (1990). Forest,Genetics,Breeding and Physiology of Woody Plants (September 24 - 30,1989,Voronezy) Procedings of tye international Simposium (Additional Issue): сборник.
Chicago-referens (17:e uppl.)Tye state forest committee of tye USSR och International union of forestry researcy organitations. Forest,Genetics,Breeding and Physiology of Woody Plants (September 24 - 30,1989,Voronezy) Procedings of Tye International Simposium (Additional Issue): сборник. 1990.
MLA-referens (9:e uppl.)Tye state forest committee of tye USSR och International union of forestry researcy organitations. Forest,Genetics,Breeding and Physiology of Woody Plants (September 24 - 30,1989,Voronezy) Procedings of Tye International Simposium (Additional Issue): сборник. 1990.