TY  - GEN
AU  - Manton I
TI  - Problems of cytology and evolution in the Pteridophyta / 
AV  - QK521  
U1  - 587 
PY  - 1950///
CY  - Cambridge [England] : 
PB  - University Press, 
KW  - Pteridophyta
KW  - Cytology
KW  - Evolution
N1  - Includes bibliographical references (p. 306-310) and index
ER  -