Gaya APA
Neill, R, O. et al
(1980).
Kernel Lessons Intermediate, Students` Book Parta
(
-)
.
Yogyakarta:
Kanisius.
Gaya MLA
Neill, Robert, O`. et al.
"Kernel Lessons Intermediate, Students` Book Parta".
-
Yogyakarta:
Kanisius,
1980.
.