Dijk, J. C. v. (1993). Softening. Netherlands: TU Delft, Faculty of Civil Engineering.
Čikaški stil citiranjaDijk, J. C. van. Softening. Netherlands: TU Delft, Faculty of Civil Engineering, 1993.
MLA način citiranjaDijk, J. C. van. Softening. Netherlands: TU Delft, Faculty of Civil Engineering, 1993.
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