How does a cordless phone, an ATM machine, or for that matter, a remote control function? The book answers your questions and touches on many wonders of the modern world
- Author:Neeraja Raghavan
- Illustrations:Surendra Suman
- No of Pages:80
- Colour:Four-colour
- Category:Information
- ISBN:81-7011-986-3
- Available also in:Hindi