APA

Vegard L., Tønsberg E., . (1935). Continued investigations on the temperature of the upper atmosphere determined by means of bands appearing in the auroral spectrum. Oslo: Grøndahl [u.a.].

Chicago

Vegard Lars, Tønsberg Einar, . 1935. Continued investigations on the temperature of the upper atmosphere determined by means of bands appearing in the auroral spectrum. Oslo: Grøndahl [u.a.].

Harvard

Vegard L., Tønsberg E., . (1935). Continued investigations on the temperature of the upper atmosphere determined by means of bands appearing in the auroral spectrum. Oslo: Grøndahl [u.a.].

MLA

Vegard Lars, Tønsberg Einar, . Continued investigations on the temperature of the upper atmosphere determined by means of bands appearing in the auroral spectrum. Oslo: Grøndahl [u.a.]. 1935.