Brenda Walpole; Ashby Merson-Davies; Leighton Dann; Peter Hoeben; Mark Headlee. (2014). Biology for the IB Diploma Coursebook (2.). Cambridge University Press.
Chicago-referens (17:e uppl.)Brenda Walpole; Ashby Merson-Davies; Leighton Dann; Peter Hoeben; Mark Headlee. Biology for the IB Diploma Coursebook. 2. Cambridge University Press, 2014.
MLA-referens (9:e uppl.)Brenda Walpole; Ashby Merson-Davies; Leighton Dann; Peter Hoeben; Mark Headlee. Biology for the IB Diploma Coursebook. 2. Cambridge University Press, 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.