Gaya APA
Kernel Lessons Intermediate Students Book. (1977).
:
Longman.
Gaya Chicago
Kernel Lessons Intermediate Students Book.
.
:
Longman,
1977.
.
Gaya MLA
Kernel Lessons Intermediate Students Book.
.
:
Longman,
1977.
.
Gaya Turabian
Kernel Lessons Intermediate Students Book.
:
Longman,
1977.
.