Pople, S., & Williams, M. (1995). Science to GCSE. Oxford University Press.
Chicago Style aipamenaPople, Stephen, and Michael Williams. Science to GCSE. Oxford: Oxford University Press, 1995.
MLA aipamenaPople, Stephen, and Michael Williams. Science to GCSE. Oxford University Press, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.