APA

Palmer J., Belshaw D., . (1979). Long-term performance of a machine-bored tunnel with use of an unreinforced, precast, segmented concrete lining in soft clay. Ottawa: National Research Council Canada. Division of Building Research. DBR paper no 864.

Chicago

Palmer JHL, Belshaw DJ, . 1979. Long-term performance of a machine-bored tunnel with use of an unreinforced, precast, segmented concrete lining in soft clay. Ottawa: National Research Council Canada. Division of Building Research. DBR paper no 864.

Harvard

Palmer J., Belshaw D., . (1979). Long-term performance of a machine-bored tunnel with use of an unreinforced, precast, segmented concrete lining in soft clay. Ottawa: National Research Council Canada. Division of Building Research. DBR paper no 864.

MLA

Palmer JHL, Belshaw DJ, . Long-term performance of a machine-bored tunnel with use of an unreinforced, precast, segmented concrete lining in soft clay. Ottawa: National Research Council Canada. Division of Building Research. DBR paper no 864. 1979.