TY  - BOOK
AU  - Macaulay,David
TI  - How machines work: zoo break! 
SN  - 1465440127
U1  - 621.8 22
PY  - 2015///
CY  - London
PB  - Dorling Kindersley Limited
KW  - Simple machines
KW  - Juvenile literature
KW  - Zoo animals
KW  - Toy and movable books
KW  - Specimens
N2  - Sloth and Sengi are friends. they have grown up together in the zoo, and know every bit of their enclosure. And, frankly, they are a little bored with it. So they begin to plan an escape, with the help of some simple machines...  This  book introduces such simple machines as levers, gears, planes, and pulleys
ER  -