APA Style
Yin, L, S. (2007).
The young scientists 79 level 1 : Why oh why? why is number of red pandas declining? (79 level 1).
Singapore:
Young Scientists Enterprise.
MLA Style
Yin, Leong, Sheng.
"The young scientists 79 level 1 : Why oh why? why is number of red pandas declining?".
79 level 1
Singapore:
Young Scientists Enterprise,
2007.
Text.