APA (7th ed.) Citation

Porsild, M. P. (1935). Stray contributions to the flora of Greenland VI-XII. C.A. Reitzel.

Chicago Style (17th ed.) Citation

Porsild, Morten P. Stray Contributions to the Flora of Greenland VI-XII. København: C.A. Reitzel, 1935.

MLA (9th ed.) Citation

Porsild, Morten P. Stray Contributions to the Flora of Greenland VI-XII. C.A. Reitzel, 1935.