Style de citation APA (7e éd.)

Sørensen, T. J., & Gleerup, E. (1941). Temperature relations and phenology of the northeast Greenland flowering plants. C.A. Reitzel.

Style de citation Chicago (17e éd.)

Sørensen, Thorvald Julius, et E. Gleerup. Temperature Relations and Phenology of the Northeast Greenland Flowering Plants. København: C.A. Reitzel, 1941.

Style de citation MLA (8e éd.)

Sørensen, Thorvald Julius, et E. Gleerup. Temperature Relations and Phenology of the Northeast Greenland Flowering Plants. C.A. Reitzel, 1941.