APA Style
Geok, K, S. (2010).
Skills in Maths Problem-Solving Primary 5 2nd Edition .
Singapore:
Marshall Cavendish Education.
MLA Style
Geok, Koh, Siew.
"Skills in Maths Problem-Solving Primary 5 2nd Edition".
Singapore:
Marshall Cavendish Education,
2010.
Text.