Gaya APA
Krohn, Robert. (1971).
English sentence structure (ed.1).
Medan:
The University.
Gaya Chicago
Krohn, Robert.
English sentence structure.
ed.1
Medan:
The University,
1971.
SASTRA.
Gaya MLA
Krohn, Robert.
English sentence structure.
ed.1
Medan:
The University,
1971.
SASTRA.
Gaya Turabian
Krohn, Robert.
English sentence structure.
ed.1
Medan:
The University,
1971.
SASTRA.