APA-viite (7. p.)
Soerensen, T. (1953). A Revision of the Greenland species of Puccinellia Parl: With contributions to our knowledge of the arctic Puccinellia flora in general. Reitzel.
Chicago-viite (17. p.)
Soerensen, Thorvald. A Revision of the Greenland Species of Puccinellia Parl: With Contributions to Our Knowledge of the Arctic Puccinellia Flora in General. København: Reitzel, 1953.
MLA-viite (9. p.)
Soerensen, Thorvald. A Revision of the Greenland Species of Puccinellia Parl: With Contributions to Our Knowledge of the Arctic Puccinellia Flora in General. Reitzel, 1953.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.