Beentje, H. J. A monograph on Strophanthus Dc. (Apocynaceae) - Wageningen : Veenman Zonen, 1982 - 191 p. : ilus. ; mapas - Mededelingen Lanbouwhogeschool ; 82-4 (1982) . - Mededelingen Lanbouwhogeschool ; 82-4 (1982) . LCCN: 13697 Subjects--Topical Terms: Strophantus. Dewey Class. No.: 583.72 / B4