Sowers, G. F., & Sally, H. L. (1962). Earth and rockfill dam engineering. London: Asia Publishing House.
Παραπομπή Chicago StyleSowers, George F., and H. L. Sally. Earth and Rockfill Dam Engineering. London: Asia Publishing House, 1962.
Παραπομπή MLASowers, George F., and H. L. Sally. Earth and Rockfill Dam Engineering. London: Asia Publishing House, 1962.
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