TY  - BOOK
AU  - Vince-Prue, Daphne
TI  - Photoperiodism plants
T2  - European plant biology series
SN  - 0070840482
U1  - 571.4552 21st ed.
PY  - 1975///
CY  - London
PB  - McGraw-Hill
KW  - Biological rhythms
KW  - Photoperoidism
KW  - Plant growth
ER  -