Geranium family species check list.
Clifton, R. T. F.(Richard Timothy Fred),1943-
British Pelargonium and Geranium Society.Geraniaceae Group.
[Westcliff-on-Sea] : British Pelargonium and Geranium Society,
[1986].
In manuscript: 20 Nov. 1986.
At head of title: The British Pelargonium and Geranium Society, Geraniaceae Group.