Gaya APA
Winter, W, D. (2003).
Plant resources of South-East Asia Cryptogams: Ferns and fern allies (no 15 (2)).
Bogor Selatan:
PT. Pembangunan.
Gaya MLA
Winter, W.P., De.
"Plant resources of South-East Asia Cryptogams: Ferns and fern allies".
no 15 (2)
Bogor Selatan:
PT. Pembangunan,
2003.
Text.