APA (7th ed.) Citation

Ingstad, H. (1969). Westward to Vinland: The discovery of pre-Columbian Norse house-sites in North America. Cape.

Chicago Style (17th ed.) Citation

Ingstad, Helge. Westward to Vinland: The Discovery of Pre-Columbian Norse House-sites in North America. London: Cape, 1969.

MLA (8th ed.) Citation

Ingstad, Helge. Westward to Vinland: The Discovery of Pre-Columbian Norse House-sites in North America. Cape, 1969.

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