Herman R. Sweet books & textbook
The Genus Phalaenopsis (Orchids of the World, Volume 1)
The Orchid Digest, Inc. /1980T Hardcover / 128 Pages
Flora of the Lesser Antilles : Orchidaceae
Leslie A. Garay Robert A. Howard Herman R. Sweet
Arnold Arboretum, Harvard University /1974-01-01 Hardcover
isbn-10: 9994116177 / isbn-13: 9789994116171
