TY  - BOOK
AU  - Winograd Eugene
ED  - American psychological association
TI  - List differentiation as a function of frequency and retention interval
U1  - 150.72 
PY  - 1968///
CY  - Washington,D.C
PB  - The association
KW  - Psychology,frequency interval,retention interval>
N1  - Supplement
ER  -