Geological Survey (South Africa) & South Africa. Dept. of Mines. Report of the Geological Survey for the year ... Govt. Print. and Stationery Office.
Chicago (17e ed.) BronvermeldingGeological Survey (South Africa) en South Africa. Dept. of Mines. Report of the Geological Survey for the Year ... Pretoria: Govt. Print. and Stationery Office.
MLA (8e ed.) BronvermeldingGeological Survey (South Africa) en South Africa. Dept. of Mines. Report of the Geological Survey for the Year ... Govt. Print. and Stationery Office.
Let op: Deze citaties zijn niet altijd 100% accuraat.