Sørensen, T. J., & Gleerup, E. (1941). Temperature relations and phenology of the northeast Greenland flowering plants. C.A. Reitzel.
Čikaški stil citiranja (17. izdanje)Sørensen, Thorvald Julius, i E. Gleerup. Temperature Relations and Phenology of the Northeast Greenland Flowering Plants. København: C.A. Reitzel, 1941.
MLA način citiranja (8. izdanje)Sørensen, Thorvald Julius, i E. Gleerup. Temperature Relations and Phenology of the Northeast Greenland Flowering Plants. C.A. Reitzel, 1941.
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