TY  - BOOK
AU  - Wilson,William W.
ED  - Penn Valley Orchids
TI  - Paphiopedilum hybrids: their parents and progeny as registered from 1856, including cypripediums andphragmipediums
PY  - 1994///
CY  - Wynnewood, Penn.
PB  - Penn Valley Orchids
KW  - Paphiopedilum
KW  - Varieties
N1  - Second edition by William W. Wilson
ER  -