Cita APA (7a ed.)

Friend, J., & Hickling, A. (1987). Planning under pressure: The strategic choice approach. Pergamon.

Cita Chicago Style (17a ed.)

Friend, John, y Allen Hickling. Planning Under Pressure: The Strategic Choice Approach. Oxford [etc.]: Pergamon, 1987.

Cita MLA (9a ed.)

Friend, John, y Allen Hickling. Planning Under Pressure: The Strategic Choice Approach. Pergamon, 1987.