APA Style

Yong, L, W., Wai, L, K. (2007). Science In Focus Physics 'O' Level 2nd Edition Theory Workbook Teacher's Edition . Singapore: Pearson Education.

MLA Style

Yong, Loo, Wan., Wai, Loo, Kwok. "Science In Focus Physics 'O' Level 2nd Edition Theory Workbook Teacher's Edition". Singapore: Pearson Education, 2007. Text.