APA

Lehmkuhl F., Hövermann J. & National Symposium on the Status of Geomorphological and Related Research in the Arid Lands of the Old World. (2002). Research in deserts and mountains of Africa and Central Asia. Berlin: Borntraeger.

Chicago

Lehmkuhl Frank, Hövermann Jürgen and National Symposium on the Status of Geomorphological and Related Research in the Arid Lands of the Old World. 2002. Research in deserts and mountains of Africa and Central Asia. Berlin: Borntraeger.

Harvard

Lehmkuhl F., Hövermann J. and National Symposium on the Status of Geomorphological and Related Research in the Arid Lands of the Old World. (2002). Research in deserts and mountains of Africa and Central Asia. Berlin: Borntraeger.

MLA

Lehmkuhl Frank, Hövermann Jürgen and National Symposium on the Status of Geomorphological and Related Research in the Arid Lands of the Old World. Research in deserts and mountains of Africa and Central Asia. Berlin: Borntraeger. 2002.