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Archibald, R.E.M. (1972). A preliminary key to the fresh and brackish water species of the genus Nitzschia in South Africa. Journal of the Limnological Society of Southern Africa. 18,19: 33-46, 37-55.
Archibald, R.E.M. (1972). A preliminary key to the fresh and brackish water species of the genus Nitzschia in South Africa. Journal of the Limnological Society of Southern Africa. 18,19: 33-46, 37-55.
