TY - BOOK AU - Burnie,David TI - Machines and how they work SN - 1879431157 : AV - TJ147 .B87 1991 U1 - 621.8 20 PY - 1991/// CY - New York PB - Dorling Kindersley KW - Machinery KW - Juvenile literature N1 - Includes index N2 - Describes, in text and illustrations, the evolution of different types of machines, how they work, and their many uses UR - http://www.archive.org/details/machineshowtheyw00burn UR - http://www.openlibrary.org/books/OL1569038M ER -