Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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