Gaya APA
Cambridge Examination Papers A-Level. (2000).
USA:
UCL.
Gaya Chicago
Cambridge Examination Papers A-Level.
.
USA:
UCL,
2000.
Monograf.
Gaya MLA
Cambridge Examination Papers A-Level.
.
USA:
UCL,
2000.
Monograf.
Gaya Turabian
Cambridge Examination Papers A-Level.
USA:
UCL,
2000.
Monograf.