APA Style
Pimentel, R. et al (1997).
Cambridge IGCSE Core and Extended Mathematics (Fifth edition) Beli .
London, UK:
Hodder Education.
MLA Style
Pimentel, Ric. et al.
"Cambridge IGCSE Core and Extended Mathematics (Fifth edition) Beli".
London, UK:
Hodder Education,
1997.
Printed Book.