Friend, J., & Hickling, A. (1987). Planning under pressure: The strategic choice approach. Pergamon Press.
Chicago Style (17. basım) AtıfFriend, John, ve Allen Hickling. Planning Under Pressure: The Strategic Choice Approach. [Oxford Oxfordshire] ; New York: Pergamon Press, 1987.
MLA (9th ed.) AtıfFriend, John, ve Allen Hickling. Planning Under Pressure: The Strategic Choice Approach. Pergamon Press, 1987.