Template:Fritsch, Rich & Stephens, 1930
- Fritsch, F.E., Rich, F. & Stephens, E.L. 1930. Contributions to our knowledge of freshwater algae of Africa. 7. Freshwater algae (exclusive of diatoms) from Griqualand West. Transactions of the Royal Society of South Africa 18: 1–92. DOI: 10.1080/00359192909518787