Gaya APA
Posner, M. (1980).
Practice english : M. Posner (ed.3, cet.2).
Hongkong:
Nelson.
Gaya Chicago
Posner, M.
Practice english : M. Posner.
ed.3, cet.2
Hongkong:
Nelson,
1980.
Textbook.
Gaya MLA
Posner, M.
Practice english : M. Posner.
ed.3, cet.2
Hongkong:
Nelson,
1980.
Textbook.
Gaya Turabian
Posner, M.
Practice english : M. Posner.
ed.3, cet.2
Hongkong:
Nelson,
1980.
Textbook.