Decadic Pelargonium cultivars /
Clifton, R. T. F.(Richard Timothy Fred),1943-
Geraniaceae Group.
[S.l.] : Geraniaceae Group,
2000-2002.
Cover title.
pt. 1. 1450-1799 -- pt. 2. 1800-1809 and 1810-1819 -- pt. 3. 1820-1829 -- pt. 4. 1830-1839 -- pt. 5. 1840-1959.
Pelargoniums