APA (7th ed.) Citation

Gjerset, K. (1924). History of Iceland. The Macmillan Co..

Chicago Style (17th ed.) Citation

Gjerset, Knut. History of Iceland. New York: The Macmillan Co., 1924.

MLA (9th ed.) Citation

Gjerset, Knut. History of Iceland. The Macmillan Co., 1924.

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