APA
Potter S., . (2005). A2 human biology : AQA specification A. London: Philip Allan Updates.
Chicago
Potter Steve, . 2005. A2 human biology : AQA specification A. London: Philip Allan Updates.
Harvard
Potter S., . (2005). A2 human biology : AQA specification A. London: Philip Allan Updates.
MLA
Potter Steve, . A2 human biology : AQA specification A. London: Philip Allan Updates. 2005.