Gaya APA
ALEXANDER, L.G.. (1975).
First things first : students' book .
Yogyakarta:
Kanisius.
Gaya Chicago
ALEXANDER, L.G..
First things first : students' book.
Yogyakarta:
Kanisius,
1975.
Text.
Gaya MLA
ALEXANDER, L.G..
First things first : students' book.
Yogyakarta:
Kanisius,
1975.
Text.
Gaya Turabian
ALEXANDER, L.G..
First things first : students' book.
Yogyakarta:
Kanisius,
1975.
Print.