APA (7th ed.) Citation

Bengtsson, F. G. (1954). The long ships: A saga of the Viking age ([1st American ed.].). Knopf.

Chicago Style (17th ed.) Citation

Bengtsson, Frans Gunnar. The Long Ships: A Saga of the Viking Age. [1st American ed.]. New York: Knopf, 1954.

MLA (9th ed.) Citation

Bengtsson, Frans Gunnar. The Long Ships: A Saga of the Viking Age. [1st American ed.]. Knopf, 1954.