Water plants of the world: A manual for the identification of the genera freshwater macrophytes. Junk 1974.
Lua i Stíl Chicago (17ú heag.)Water Plants of the World: A Manual for the Identification of the Genera Freshwater Macrophytes. The Hague: Junk 1974.
Lua MLA (9ú heag.)Water Plants of the World: A Manual for the Identification of the Genera Freshwater Macrophytes. Junk 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.