| title | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Die Orchideen. Biologie und Systematik der Orchidaceae | 978-3-8001-6331-1 | 1987 | ||
| Identification Manual for Wetland Plant Species of Florida | 978-0-916287-04-7 | 1991 | ||
| Orchids of Mexico | 978-968-7889-08-5 | 2006 | Eric Hagsater · Rolando Jimenez · Gerado Salazar Marco Lopez · Miguel Soto | |
| Phylogeny and Classification of the Orchid Family | 978-0-521-45058-4 | 1993 | ||
| Phylogeny and Classification of the Orchid Family | 978-0-931146-24-4 | 1993 | ||
| The Genus Encyclia in Mexico | 978-99941-1-605-8 | 1974 | Glenn E. Pollard | |
L.D. · R.D. · R Dressler · R. L · Robert D. · Robert Dressler · Robert L.
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