TY  - BOOK
AU  - Scheinfeld,Amram
TI  - Twins and supertwins
SN  - 0397005075
AV  - BF723.T9 S3
U1  - 155.44/4 
PY  - 1967///]
CY  - Philadelphia
PB  - Lippincott
KW  - Twins
KW  - Psychology
KW  - Local
N1  - Bibliography: p. 277-285
ER  -