The Iskender-I-Birkilin caves in the 9th and 12th centuries B.C

von Halliday, William R., 1926-
Veröffentlicht in The NSS bulletin., v. 57, no. 2, (Dec. 1995)
[Huntsville, Ala.] : National Speleological Society, 1996.
Umfang/Format: pages 108-110 : illustrations ; 28 cm.