APA (7th ed.) Citation

Ruge, S., & Arstal, A. (1936). Norwegen (6.Aufl.). Velhagen & Klasing.

Chicago Style (17th ed.) Citation

Ruge, Sophus, and Aksel Arstal. Norwegen. 6.Aufl. Bielefeld u.a: Velhagen & Klasing, 1936.

MLA (9th ed.) Citation

Ruge, Sophus, and Aksel Arstal. Norwegen. 6.Aufl. Velhagen & Klasing, 1936.

Warning: These citations may not always be 100% accurate.