TY  - BOOK
AU  - Aggarwal, Santosh
TI  - Three language formula:an educational problem
SN  - 8121203368
U1  - 372.6 
PY  - 1991///
CY  - New Delhi
PB  - Gian Publishing House
KW  - Education
N1  - Includes bibliographical references and index
ER  -