APA Style
Why do cats purr?. (2011).
Batam Centre:
Adams Media.
Chicago Style
Why do cats purr?.
.
Batam Centre:
Adams Media,
2011.
Book.
MLA Style
Why do cats purr?.
.
Batam Centre:
Adams Media,
2011.
Book.
Turabian Style
Why do cats purr?.
Batam Centre:
Adams Media,
2011.
Book.