Crustacea. Part N [microform] : the crustacean life of some Arctic lagoons, lakes and ponds
![Crustacea. Part N [microform] : the crustacean life of some Arctic lagoons, lakes and ponds](https://archive.org/services/img/cihm_82843)
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Creator: Johansen, Frits, b. 1882, Canadian Arctic Expedition (1913-1918)
Date: 1922-01-01
![Crustacea. Part J [microform] : freshwater Copepoda](https://archive.org/services/img/cihm_82840)