Ptolemy, a. 2. c., Humbach, H., & Ziegler, S. Geography, book 6: Middle East, Central and North Asia, China.
Chicago Style CitationPtolemy, active 2nd century., Helmut Humbach, and Susanne Ziegler. Geography, Book 6: Middle East, Central and North Asia, China.
MLA CitationPtolemy, active 2nd century., Helmut Humbach, and Susanne Ziegler. Geography, Book 6: Middle East, Central and North Asia, China.
Warning: These citations may not always be 100% accurate.