APA (7th ed.) Citation
Grabe, P. (2018). Advanced characterisation of railway ballast roundness. University of Pretoria.
Chicago Style (17th ed.) Citation
Grabe, P.J. Advanced Characterisation of Railway Ballast Roundness. University of Pretoria, 2018.
MLA (9th ed.) Citation
Grabe, P.J. Advanced Characterisation of Railway Ballast Roundness. University of Pretoria, 2018.
Warning: These citations may not always be 100% accurate.