Calculation techniques faster than computer
(for all competetive exam and school student)
Gupta, B. S
creator
Bhushan, S
text
Delhi
S. S. Publications
2010
monographic
133p. 21cm (pbk)
by B. S. Gupta [and] S. Bhushan
511.2078
9788189812331
ENG-98191
DBAD/PUB
20100804154433.0