Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Friend, John, i Allen Hickling. Planning Under Pressure: The Strategic Choice Approach. [Oxford Oxfordshire] ; New York: Pergamon Press, 1987.

Cita MLA (9th ed.)

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