APA (7th ed.) Citation

Poulsen, E. M. (1940). Biological remarks on Lepidurus arcticus Pallas, Daphnia pulex de Geer and Chydorus sphaericus O.F.M. in East Greenland. Reitzel.

Chicago Style (17th ed.) Citation

Poulsen, Erik Mellentin. Biological Remarks on Lepidurus Arcticus Pallas, Daphnia Pulex De Geer and Chydorus Sphaericus O.F.M. in East Greenland. København: Reitzel, 1940.

MLA (9th ed.) Citation

Poulsen, Erik Mellentin. Biological Remarks on Lepidurus Arcticus Pallas, Daphnia Pulex De Geer and Chydorus Sphaericus O.F.M. in East Greenland. Reitzel, 1940.