Echinodorus intermedius (Martius) Grisebach und verwandte arten des Tropischen Amerika /
von C.Sc. Karel Rataj. -
- [S.1. : s.n.] , 1967.
- p. [613]- 619 : illl.
Title translated: Echinodorus intermedius (Martius) : Various medical plants in Tropical America. Offprint from: Mitt. Bot. Munchen, Band vi, p. 613-619, 31.10.1967