Gaya APA
Richards,J.C. (1987).
Break through : a course in english communication practice (ed. 1; ed.2 dan ed.3).
Hongkong:
Oxford Univ. Pres.
Gaya Chicago
Richards,J.C.
Break through : a course in english communication practice.
ed. 1; ed.2 dan ed.3
Hongkong:
Oxford Univ. Pres,
1987.
Text.
Gaya MLA
Richards,J.C.
Break through : a course in english communication practice.
ed. 1; ed.2 dan ed.3
Hongkong:
Oxford Univ. Pres,
1987.
Text.
Gaya Turabian
Richards,J.C.
Break through : a course in english communication practice.
ed. 1; ed.2 dan ed.3
Hongkong:
Oxford Univ. Pres,
1987.
Print.