Cita APA (7a ed.)

Ratcliff, B., Eccles, H., Raffan, J., Nicholon, J., Johnson, D., Acaster, D., . . . Newman, J. (2004). AS level and A Level: Chemistry. Cambridge University Press.

Cita Chicago Style (17a ed.)

Ratcliff, Brian, Helen Eccles, John Raffan, John Nicholon, David Johnson, David Acaster, Philip Matthews, y John Newman. AS Level and A Level: Chemistry. Cambridge: Cambridge University Press, 2004.

Cita MLA (8a ed.)

Ratcliff, Brian, et al. AS Level and A Level: Chemistry. Cambridge University Press, 2004.