Gaya APA
Tan, Lea. (2012).
101 Why .
Singapore:
Educational Publishing.
Gaya Chicago
Tan, Lea.
101 Why.
Singapore:
Educational Publishing,
2012.
Text.
Gaya MLA
Tan, Lea.
101 Why.
Singapore:
Educational Publishing,
2012.
Text.
Gaya Turabian
Tan, Lea.
101 Why.
Singapore:
Educational Publishing,
2012.
Print.