APA

Backlund H. G., . (1921). On the Eastern part of the Arctic basalt plateau. Åbo: Åbo Akad.

Chicago

Backlund Helge G, . 1921. On the Eastern part of the Arctic basalt plateau. Åbo: Åbo Akad.

Harvard

Backlund H. G., . (1921). On the Eastern part of the Arctic basalt plateau. Åbo: Åbo Akad.

MLA

Backlund Helge G, . On the Eastern part of the Arctic basalt plateau. Åbo: Åbo Akad. 1921.