Gaya APA
Heyworth, R, M, &, J, B. (2007).
Chemistry Insights '0' Level 2nd Edition (2007) .
Singapura:
Pearson Education.
Gaya MLA
Heyworth, Rex, M., &, JGR., Briggs.
"Chemistry Insights '0' Level 2nd Edition (2007)".
Singapura:
Pearson Education,
2007.
Printed Book.