1. Kimberlites from the Kao Pipe, Lesotho;CLEMENT,1973
2. Basutoland kimberlites;DAWSON;Geol. Soc. Amer. Bull.,1962
3. Geochemistry and origin of kimberlite;DAWSON,1967
4. Advances in kimberlite geology;DAWSON;Earth-Sci. Rev.,1971
5. Magmatic sedimentation and carbonatitic differentiation in kimberlite sills at Benfontein, South Africa;DAWSON;J. Geol. Soc.,1973