Penggayaan APA

GRADDOL, David. (2007). English next: . [s.l.]: British Council.

Chicago Style

GRADDOL, David. English next:. [s.l.]: British Council, 2007. Buku.

MLA Style

GRADDOL, David. English next:. [s.l.]: British Council, 2007. Buku.

Turabian Style

GRADDOL, David. English next:. [s.l.]: British Council, 2007. Buku.