APA Style
Gorilla Watching Tours. (2009).
London:
Heinle Cengage Learning.
Chicago Style
Gorilla Watching Tours.
.
London:
Heinle Cengage Learning,
2009.
.
MLA Style
Gorilla Watching Tours.
.
London:
Heinle Cengage Learning,
2009.
.
Turabian Style
Gorilla Watching Tours.
London:
Heinle Cengage Learning,
2009.
.