TY  - BOOK
AU  - Lofts, Brian,
TI  - Animal photoperiodism
T2  - Institute of Biology's studies in biology
SN  - 713122943
AV  - QP82.2L5 L62
PY  - 1970///
CY  - London
PB  - E. Arnold
KW  - Fotoperiodicidad
ER  -