APA Style
Dr. Rex M Heyworth, J G R Briggs. (2007).
Science in Focus Chemistry N Level 2nd Edition .
Singapura:
Longman.
Chicago Style
Dr. Rex M Heyworth, J G R Briggs.
Science in Focus Chemistry N Level 2nd Edition.
Singapura:
Longman,
2007.
Printed Book.
MLA Style
Dr. Rex M Heyworth, J G R Briggs.
Science in Focus Chemistry N Level 2nd Edition.
Singapura:
Longman,
2007.
Printed Book.
Turabian Style
Dr. Rex M Heyworth, J G R Briggs.
Science in Focus Chemistry N Level 2nd Edition.
Singapura:
Longman,
2007.
Printed Book.