Hoff, N. J. (1956). The analysis of structures: Based on the minimal principles and the principle of virtual displacements. New York: John Wiley & Sons, Inc..
Παραπομπή Chicago StyleHoff, Nicholas John. The Analysis of Structures: Based On the Minimal Principles and the Principle of Virtual Displacements. New York: John Wiley & Sons, Inc., 1956.
Παραπομπή MLAHoff, Nicholas John. The Analysis of Structures: Based On the Minimal Principles and the Principle of Virtual Displacements. New York: John Wiley & Sons, Inc., 1956.
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