Leithauser, Joachim G. Ufkun ötesindeki dünyalar / Joachim G. Leithauser. - 2nd ed. - Istanbul : Doğan Kitap, 2002. - 316 p. : ; 23 cm. Includes bibliographical references and index. This book is in Turkish. ISBN: 9752930239 Subjects--Topical Terms: Discoveries in geography.