TY  - SER
AU  -  Williams, Archibald, 
TI  -  How it Works : :  
AV  - T 
PY  - 2009///
PB  -  Project Gutenberg, 
KW  -  Technology -- Juvenile literature
KW  -  Science -- Juvenile literature
N1  -  Public domain in the USA;  Text
UR  -  http://www.gutenberg.org/ebooks/28553
ER  -