TY  - BOOK
TI  - Yuanzidan shi zenyang zhizao de?
T2  - Tujie kezhi congshu
U1  - 500 YUA 1992 
PY  - 1992///
CY  - Kuala Lumpur
PB  - Penerbitan Sinar Suria
KW  - Science
KW  - Juvenile literature
ER  -