Franciss, F. O. (1994). Weak rock tunelling: : a simplified analytical simulation, a PC-based model and design charts for engineering practice. Rotterdam: Ashgate Publishing Co..
Παραπομπή Chicago StyleFranciss, Fernando O. Weak Rock Tunelling: : A Simplified Analytical Simulation, a PC-based Model and Design Charts for Engineering Practice. Rotterdam: Ashgate Publishing Co., 1994.
Παραπομπή MLAFranciss, Fernando O. Weak Rock Tunelling: : A Simplified Analytical Simulation, a PC-based Model and Design Charts for Engineering Practice. Rotterdam: Ashgate Publishing Co., 1994.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.