APA Style
Ryan, Bob. (2010).
O-Level Chemistry Guide .
Singapore:
Educational Publishing House.
Chicago Style
Ryan, Bob.
O-Level Chemistry Guide.
Singapore:
Educational Publishing House,
2010.
Text.
MLA Style
Ryan, Bob.
O-Level Chemistry Guide.
Singapore:
Educational Publishing House,
2010.
Text.
Turabian Style
Ryan, Bob.
O-Level Chemistry Guide.
Singapore:
Educational Publishing House,
2010.
Print.