TY  - BOOK
AU  - Hughes,Martin
TI  - Bodyclock: the effects of time on human health 
SN  - 0816022232
AV  - QP84.6 .B63 1989
U1  - 612/.022 20
PY  - 1989///
CY  - New York
PB  - Facts on File
KW  - Chronobiology
KW  - Biological rhythms
N1  - Includes bibliographical references (p. 186)
ER  -