TY  - BOOK
AU  - Wagner,David H.
TI  - Systematics of polystichum in Western North America north of Mexico
T2  - Pteridologia / ed. by Alan R. Smith [a. o.]
SN  - 0933500009
PY  - 1979///
CY  - [USA]
PB  - American Fern Society
KW  - папоротникообразные
KW  - папоротники
KW  - многорядник
N1  - Bibliogr.: p. 58-60
ER  -