TY  - BOOK
AU  - Ball, John S.
TI  - Southern African epiphytic orchids
U1  - 584.40968 21st ed.
PY  - 1978///
CY  - London
PB  - Conservation Press
KW  - Botany-Africa, Southern
KW  - Epiphytes-Africa, Southern
KW  - Orchids-Africa, Southern
KW  - Orchids-Pictorial works
ER  -