Gaya APA
Jones, Leo. (1989).
Progress to proficiency : student's book / Leo JOnes .
:
Canmbridge : Cambridge University Press.
Gaya Chicago
Jones, Leo.
Progress to proficiency : student's book / Leo JOnes.
:
Canmbridge : Cambridge University Press,
1989.
Buku.
Gaya MLA
Jones, Leo.
Progress to proficiency : student's book / Leo JOnes.
:
Canmbridge : Cambridge University Press,
1989.
Buku.
Gaya Turabian
Jones, Leo.
Progress to proficiency : student's book / Leo JOnes.
:
Canmbridge : Cambridge University Press,
1989.
Buku.