APA (7th ed.) Citation
Harff, A., & Letts, M. H. I. (2010). The pilgrimage of Arnold von Harff, knight: From Cologne through Italy, Syria, Egypt, Arabia, Ethiopia, Nubia, Palestine, Turkey, France, and Spain, which he accomplished in the years 1496 to 1499. Ashgate.
Chicago Style (17th ed.) Citation
Harff, Arnold, and Malcolm Henry Ikin Letts. The Pilgrimage of Arnold Von Harff, Knight: From Cologne Through Italy, Syria, Egypt, Arabia, Ethiopia, Nubia, Palestine, Turkey, France, and Spain, Which He Accomplished in the Years 1496 to 1499. Surrey: Ashgate, 2010.
MLA (9th ed.) Citation
Harff, Arnold, and Malcolm Henry Ikin Letts. The Pilgrimage of Arnold Von Harff, Knight: From Cologne Through Italy, Syria, Egypt, Arabia, Ethiopia, Nubia, Palestine, Turkey, France, and Spain, Which He Accomplished in the Years 1496 to 1499. Ashgate, 2010.
Warning: These citations may not always be 100% accurate.