APA
National Institute for Transport and Road Research. NITRR Manual P 8, . (1980). Slope stability analysis by Bishop's method for circular slip and graphical representation of results. Pretoria: National Institute for Transport and Road Research. NITRR Manual P 8.
Chicago
National Institute for Transport and Road Research. NITRR Manual P 8, . 1980. Slope stability analysis by Bishop's method for circular slip and graphical representation of results. Pretoria: National Institute for Transport and Road Research. NITRR Manual P 8.
Harvard
National Institute for Transport and Road Research. NITRR Manual P 8, . (1980). Slope stability analysis by Bishop's method for circular slip and graphical representation of results. Pretoria: National Institute for Transport and Road Research. NITRR Manual P 8.
MLA
National Institute for Transport and Road Research. NITRR Manual P 8, . Slope stability analysis by Bishop's method for circular slip and graphical representation of results. Pretoria: National Institute for Transport and Road Research. NITRR Manual P 8. 1980.