TY  - BOOK
AU  - Haswani, Radhika
TI  - First how things work: encyclopedia 
SN  - 978-0-2411-8879-8
U1  - Ref 621.8 H359 2019 
PY  - 2019///
CY  - London : 
PB  - Dorling Kindersley
KW  - Science encyclopedia. -
KW  - Technology. -
KW  - Questions and answers. -
N2  - Explains the inner workings of everyday utilities, from light bulbs and engines to roller coasters and laptops
ER  -