Psomas, S., & Houlsby, G. (2001). Properties of foam/sand mixtures for tunnelling applications.
Čikaški stil citiranja (17. izdanje)Psomas, S., i G. Houlsby. Properties of Foam/sand Mixtures for Tunnelling Applications. 2001.
MLA način citiranja (9. izdanje)Psomas, S., i G. Houlsby. Properties of Foam/sand Mixtures for Tunnelling Applications. 2001.
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