Gaya APA
Martono, Engelbertus. (1992).
English correspondence for a young generation (cet.1).
Jakarta:
Karya Utama.
Gaya Chicago
Martono, Engelbertus.
English correspondence for a young generation.
cet.1
Jakarta:
Karya Utama,
1992.
Text.
Gaya MLA
Martono, Engelbertus.
English correspondence for a young generation.
cet.1
Jakarta:
Karya Utama,
1992.
Text.
Gaya Turabian
Martono, Engelbertus.
English correspondence for a young generation.
cet.1
Jakarta:
Karya Utama,
1992.
Print.