Gaya APA
Harwood, Richard. (2002).
IGCSE New Edition Chemistry .
Cambridge:
Cambridge University Press.
Gaya Chicago
Harwood, Richard.
IGCSE New Edition Chemistry.
Cambridge:
Cambridge University Press,
2002.
Non-fiction.
Gaya MLA
Harwood, Richard.
IGCSE New Edition Chemistry.
Cambridge:
Cambridge University Press,
2002.
Non-fiction.
Gaya Turabian
Harwood, Richard.
IGCSE New Edition Chemistry.
Cambridge:
Cambridge University Press,
2002.
Non-fiction.