https://catalogue-scientifique.canada.ca/record=3136862~S6*frc
Rechercher Diggs, George M; Rechercher Lipscomb, Barney L; Rechercher O'Kennon, Robert J; Rechercher Mahler, William F; Rechercher Shinners, Lloyd Herbert
Botanical Research Institute of Texas, 1999, ISBN : 9781889878010
Livre