TY  - BOOK
AU  - Rasmussen,Margaret
ED  - Association for Childhood Education International.
TI  - Individualizing education 
U1  - 371.394 RAS 
PY  - 1964///]
CY  - Washington, 
PB  - 
KW  - Ability grouping in education
N1  -  "Companion bulletin to [the author's] Toward effective grouping.";  Includes bibliographies
ER  -