TY  - BOOK
AU  - Bass,Karen
TI  - Nature's great events
SN  - 1845334566 (hbk.)
U1  - 508 
PY  - 2009///
CY  - London
PB  - Mitchell Beazley
KW  - Natural history
KW  - Animal migration
KW  - Biological rhythms
KW  - Cycles
KW  - Seasons
N1  - Companion book to the television series; Includes bibliographical references (p. 315) and index
ER  -