TY  - BOOK
AU  - Wright,Lawrence
TI  - Twins : : and what they tell us about who we are / 
SN  - 0471296449   
PY  - 1998///.
CY  - New York
PB  - John Wiley, 
KW  - Nature and nurture
KW  - Twins
KW  - Psychology
N1  - Includes bibliography; Includes index
ER  -