179108 Franciss, F. O. (1994). Weak rock tunnelling: A simplified analytical simulation, a PC-based model and design charts for engineering practice. Rotterdam : AA Balkema.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र179108 Franciss, F. O. Weak Rock Tunnelling: A Simplified Analytical Simulation, a PC-based Model and Design Charts for Engineering Practice. Rotterdam : AA Balkema, 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्र179108 Franciss, F. O. Weak Rock Tunnelling: A Simplified Analytical Simulation, a PC-based Model and Design Charts for Engineering Practice. Rotterdam : AA Balkema, 1994.
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