APA (7th ed.) Citation

Sturla Þórðarson & Johnstone, J. (2006). The Norwegian account of Haco's expedition against Scotland, A.D. MCCLXIII. Project Gutenberg.

Chicago Style (17th ed.) Citation

Sturla Þórðarson and James Johnstone. The Norwegian Account of Haco's Expedition Against Scotland, A.D. MCCLXIII. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Sturla Þórðarson and James Johnstone. The Norwegian Account of Haco's Expedition Against Scotland, A.D. MCCLXIII. Project Gutenberg, 2006.

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