APA Style
Ling, W, M. et al (2006).
Biology Expression an Inquiry Approach : Theory Workbook O Level Science Biology .
Singapore:
EPB Pan Pacific.
MLA Style
Ling, Woo, Mei. et al.
"Biology Expression an Inquiry Approach : Theory Workbook O Level Science Biology".
Singapore:
EPB Pan Pacific,
2006.
Text.