TY  - BOOK
AU  - YU Mang
AU  - Guang Guo
TI  - Bei Jing 360 Derajat
SN  - 978-7-5006-8304-9
U1  - 931. 
PY  - 2008///
CY  - Beijing
PB  - China Youth Press
KW  - 0
KW  - Grade 7-9
ER  -