TY  - BOOK
AU  - Pennington, Bruce F.
AU  - Gilger, Jeffrey W.
AU  - Olson, Richard K.
TI  - The external validity of age-versus IQ-discrepancy definitions of reading disability : lessons from a twin study / [et al.]
KW  - DIFERENCIAS DE EDAD
KW  - DIFERENCIAS INTELECTUALES
KW  - ETIOLOGIA
KW  - GENETICA
KW  - READING DIFFICULTIES
KW  - VALIDEZ
N1  - Mayo 1993
ER  -