Grant, E. (1977). Physical science in the Middle Ages. Cambridge: Cambridge University Press.
Chicago Style aipamenaGrant, Edward. Physical Science in the Middle Ages. Cambridge: Cambridge University Press, 1977.
MLA aipamenaGrant, Edward. Physical Science in the Middle Ages. Cambridge: Cambridge University Press, 1977.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.