APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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