Pirani, J. R. 1998: A revision of Helietta and Balfourodendron (Rutaceae-Pteleinae). – Brittonia 50: 348-380

TitleA revision of Helietta and Balfourodendron (Rutaceae-Pteleinae).
AuthorshipPirani, J. R.
Date published1998
Volume50
In journalBrittonia
Pages348-380