Gaya APA
Krohn, R. (1990).
English sentence structure: the successor to English sentence patterns / Robert Krohn (Cet. 1).
:
Binarupa Aksara.
Gaya MLA
Krohn, Robert.
"English sentence structure: the successor to English sentence patterns / Robert Krohn".
Cet. 1
:
Binarupa Aksara,
1990.
Referensi.