TY - BOOK ID - 127902323 TI - Entwined lives : twins and what they tell us about human behavior PY - 1999 SN - 0525944656 PB - New York (N.Y.) : Dutton, DB - UniCat KW - Nature and nurture. KW - Twins KW - Psychology. UR - https://www.unicat.be/uniCat?func=search&query=sysid:127902323 AB - ER -