Gaya APA

Heyworth, R, M, &, J, B. (2007). Chemistry Insights '0' Level 2nd Edition Theory Workbook (2007) . Singapura: Pearson Education.

Gaya MLA

Heyworth, Rex, M., &, JGR., Briggs. "Chemistry Insights '0' Level 2nd Edition Theory Workbook (2007)". Singapura: Pearson Education, 2007. Printed Book.