Jones, M. $., Fosbery, R., Taylor, D., & Gregory, J. (2003). AS level and A level: Biology. Cambridge University Press.
Cita Chicago (17th ed.)Jones, M. $q(Mary), Richard Fosbery, Dennis Taylor, i Jennifer Gregory. AS Level and A Level: Biology. Cambridge: Cambridge University Press, 2003.
Cita MLA (8th ed.)Jones, M. $q(Mary), et al. AS Level and A Level: Biology. Cambridge University Press, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.