Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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