TY  - BOOK
AU  - Beck, Stanley D.
TI  - Insect photoperiodism
SN  - 0120843803
U1  - 571.455 21st ed.
PY  - 1980///
CY  - New York
PB  - Academic Press Inc
KW  - Insects
KW  - Light relations
KW  - Photoperiodism
N1  - Index: p. 365-87
ER  -