Patrick, R. M.; Freese, L. R. (1961). Diatoms (Bacillariophyceae) from Northern Alaska. Proceedings of the Academy of Natural Sciences of Philadelphia. 112(6): 129-293.
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Patrick, R. M.; Freese, L. R.
1961
Diatoms (Bacillariophyceae) from Northern Alaska.
Proceedings of the Academy of Natural Sciences of Philadelphia