Schoeman, F.R. (1970). Diatoms from the Orange Free State, South Africa, and Lesotho I. In: Diatomaceae II (J. Gerloff & J.B. Cholnoky, eds.). Beihefte zur Nova Hedwigia, 31: 331-382, 49 figs.
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Schoeman, F.R.
1970
Diatoms from the Orange Free State, South Africa, and Lesotho I.
In: Diatomaceae II (J. Gerloff & J.B. Cholnoky, eds.). Beihefte zur Nova Hedwigia