TY  - BOOK
AU  - Posthumus, Oene., 1898-1945.
TI  - Malayan fern studies: by O. Posthumus
U1  - 587.310959 
PY  - 1938///
CY  - Amsterdam
PB  - N.V. NoordHollandsche
KW  - Ferns - Identification. - Malay Archipelago
KW  - Ferns - Identification. - Malaysia
ER  -