APA Style
Ridout, Ronald. (1972).
World wide english .
London:
Macmillan Education.
Chicago Style
Ridout, Ronald.
World wide english.
London:
Macmillan Education,
1972.
Text.
MLA Style
Ridout, Ronald.
World wide english.
London:
Macmillan Education,
1972.
Text.
Turabian Style
Ridout, Ronald.
World wide english.
London:
Macmillan Education,
1972.
Print.