TY  - BOOK
AU  - Thommen,George S.
TI  - Is this your day?: How biorhythm helps you determine your life cycles,
SN  - 0517505991
AV  - QP84.6 .T46 1973
PY  - 1973///]
CY  - New York
PB  - Crown Publishers
KW  - Biological rhythms
N1  - Bibliography: p. 157-160
ER  -