APA (7th ed.) Citation

Rørdam, H. N. K. (1925). Studies on activity. J. Gjellerup.

Chicago Style (17th ed.) Citation

Rørdam, Hans Nicolai Kellermann. Studies on Activity. Kobenhavn: J. Gjellerup, 1925.

MLA (8th ed.) Citation

Rørdam, Hans Nicolai Kellermann. Studies on Activity. J. Gjellerup, 1925.