Berggren, J. L., & Jones, A. Ptolemy's Geography: An annotated translation of the theoretical chapters.
استشهاد بنمط شيكاغوBerggren, J. L.,, و Alexander Jones. Ptolemy's Geography: An Annotated Translation of the Theoretical Chapters.
MLA استشهادBerggren, J. L.,, و Alexander Jones. Ptolemy's Geography: An Annotated Translation of the Theoretical Chapters.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.