APA استشهاد

Davies, P. C. W. (1977). Space and time in the modern Universe. Cambridge University Press.

استشهاد بنمط شيكاغو

Davies, P C W. Space and Time in the Modern Universe. London: Cambridge University Press, 1977.

MLA استشهاد

Davies, P C W. Space and Time in the Modern Universe. Cambridge University Press, 1977.