APA (7th ed.) Citation

Donnelly, I. (1883). Ragnarok: The age of fire and gravel. Appleton.

Chicago Style (17th ed.) Citation

Donnelly, Ignatius. Ragnarok: The Age of Fire and Gravel. New York: Appleton, 1883.

MLA (9th ed.) Citation

Donnelly, Ignatius. Ragnarok: The Age of Fire and Gravel. Appleton, 1883.

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