Gaya APA
Jones, Leo. (1993).
Progress to first certificate / Leo Jones (7th print.).
:
Cambridge: Cambridge University Press.
Gaya Chicago
Jones, Leo.
Progress to first certificate / Leo Jones.
7th print.
:
Cambridge: Cambridge University Press,
1993.
Buku.
Gaya MLA
Jones, Leo.
Progress to first certificate / Leo Jones.
7th print.
:
Cambridge: Cambridge University Press,
1993.
Buku.
Gaya Turabian
Jones, Leo.
Progress to first certificate / Leo Jones.
7th print.
:
Cambridge: Cambridge University Press,
1993.
Buku.