TY  - BOOK
T1  - Class Size Factors in Elementary Schools
T2  - Bureau of laboratory schools. Publication ;
A1  - Otto, Henry J.
A2  - Lozier Condon, Minnie
A2  - James, Edward W.
A2  - Olson, Waldemar
A2  - Weber, Robert
PP  - Austin
PB  - The University of Texas
YR  - 1954
UL  - http://vufind10-pruebas.sigbunlp.bibliotecas.unlp.edu.ar/Record/dun.156859
OP  - 178
ER  -