APA

Newman L., Elworthy A., . (2007). How many Animals ?. London: collins.

Chicago

Newman Lee, Elworthy Antony, . 2007. How many Animals ?. London: collins.

Harvard

Newman L., Elworthy A., . (2007). How many Animals ?. London: collins.

MLA

Newman Lee, Elworthy Antony, . How many Animals ?. London: collins. 2007.