Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (8th εκδ.)

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