Tan, Eunice Machines are important to us / Eunice Tan - Petaling Jaya : Prisma, 2005 - 36p. : col. ill. ; 26cm. - Smart science . Includes index ISBN: 9838772410 (pbk.) : RM15.80 9838772372 (set) Nat. Bib. No.: M07-00138 Subjects--Topical Terms: Machinery--Juvenile literature Dewey Class. No.: 621.8