APA Style
GCE O Level English language (Yearly). (1998).
:
GCE.
Chicago Style
GCE O Level English language (Yearly).
.
:
GCE,
1998.
Text.
MLA Style
GCE O Level English language (Yearly).
.
:
GCE,
1998.
Text.
Turabian Style
GCE O Level English language (Yearly).
:
GCE,
1998.
Print.