Working Paper
Maggioni, L.
International Plant Genetic Resources Institute; European Cooperative Programme for Plant Genetic Resources; Maggioni, L.; Janes, R.; Hayes, A.; Swinburne, T.; Lipman, E. (comps.) (1998) Report of a Working Group on Malus/Pyrus. n. 106 p. ISBN: 978-92-9043-376-7, ISBN: 92-9043-376-0