Ratcliff, B., Eccles, H., Raffan, J., Nicholon, J., Johnson, D., Acaster, D., . . . Newman, J. (2004). AS level and A Level: Chemistry. Cambridge University Press.
Chicago-referens (17:e uppl.)Ratcliff, Brian, Helen Eccles, John Raffan, John Nicholon, David Johnson, David Acaster, Philip Matthews, och John Newman. AS Level and A Level: Chemistry. Cambridge: Cambridge University Press, 2004.
MLA-referens (8:e uppl.)Ratcliff, Brian, et al. AS Level and A Level: Chemistry. Cambridge University Press, 2004.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.