APA (7th ed.) Citation

Norn, O. (1983). Hercules at the frontier: Christian IV's castle at Kolding.

Chicago Style (17th ed.) Citation

Norn, Otto. Hercules at the Frontier: Christian IV's Castle at Kolding. 1983.

MLA (9th ed.) Citation

Norn, Otto. Hercules at the Frontier: Christian IV's Castle at Kolding. 1983.

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