Cita APA (7a ed.)

Doran, C. F. (1991). Systems in crisis: New imperatives of high politics at century's end. University Press.

Cita Chicago Style (17a ed.)

Doran, Charles F. Systems in Crisis: New Imperatives of High Politics at Century's End. Cambridge [etc.]: University Press, 1991.

Cita MLA (9a ed.)

Doran, Charles F. Systems in Crisis: New Imperatives of High Politics at Century's End. University Press, 1991.