Gaya APA
Olivera, Manuel, Hofmann, Ruedi. (1989).
Group Media .
Yogyakarta:
Kanisius.
Gaya Chicago
Olivera, Manuel, Hofmann, Ruedi.
Group Media.
Yogyakarta:
Kanisius,
1989.
Text.
Gaya MLA
Olivera, Manuel, Hofmann, Ruedi.
Group Media.
Yogyakarta:
Kanisius,
1989.
Text.
Gaya Turabian
Olivera, Manuel, Hofmann, Ruedi.
Group Media.
Yogyakarta:
Kanisius,
1989.
Print.