Gaya APA

Revise GCSE Complete Study & Revision Guide. (2007). London: letts Educational.

Gaya Chicago

Revise GCSE Complete Study & Revision Guide. . London: letts Educational, 2007. Buku.

Gaya MLA

Revise GCSE Complete Study & Revision Guide. . London: letts Educational, 2007. Buku.

Gaya Turabian

Revise GCSE Complete Study & Revision Guide. London: letts Educational, 2007. Buku.