APA Style
Mackin, Ronald. (1968).
Exercises in English patterns and usage: Key to books 1 to 5 .
London:
Oxford University Press.
Chicago Style
Mackin, Ronald.
Exercises in English patterns and usage: Key to books 1 to 5.
London:
Oxford University Press,
1968.
Text.
MLA Style
Mackin, Ronald.
Exercises in English patterns and usage: Key to books 1 to 5.
London:
Oxford University Press,
1968.
Text.
Turabian Style
Mackin, Ronald.
Exercises in English patterns and usage: Key to books 1 to 5.
London:
Oxford University Press,
1968.
Print.