TY  - BOOK
AU  - John L. Harper
TI  - Population biology of plants
SN  - 0-12-325852-9
U1  - 581.5 
PY  - 1977///
CY  - London
PB  - Academic Press
N1  - John L. Harper: Population biology of plants.  London.  Academic Press, 1977. 0-12-325852-9--(581.5HAR)
ER  -