APA (7th ed.) Citation

Bogh, K. (1991). Three centuries at the Royal Library. Royal Library.

Chicago Style (17th ed.) Citation

Bogh, Knud. Three Centuries at the Royal Library. Copenhagen: Royal Library, 1991.

MLA (9th ed.) Citation

Bogh, Knud. Three Centuries at the Royal Library. Royal Library, 1991.

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