TY  - BOOK
AU  - Irala, Narciso
TI  - Mental Efficiency Without Fatigue; GSC000100
SN  - 8171080170
U1  - 150.13 I65M 
PY  - 1988///
CY  - Mumbai
PB  - Better Yourself Books
KW  - Intellectual Happiness
KW  - Personal development and happiness
KW  - Physical Health
ER  -