TY  - BOOK
AU  - Segal,Nancy L.
TI  - Entwined lives: twins and what they tell us about human behavior 
SN  - 0525944656 (alk. paper)
AV  - BF723.T9S44 1999 
PY  - 1999///
CY  - New York
PB  - Dutton
KW  - Twins
KW  - Psychology
KW  - Nature and nurture
ER  -