Cita APA (7a ed.)

Ridley, B. K. (1986). Time, space and things (2nd ed.). Cambridge University Press.

Cita Chicago Style (17a ed.)

Ridley, B. K. Time, Space and Things. 2nd ed. Cambridge [etc.]: Cambridge University Press, 1986.

Cita MLA (9a ed.)

Ridley, B. K. Time, Space and Things. 2nd ed. Cambridge University Press, 1986.