APA (7th ed.) Citation

Graßhoff, G. (1993). The Babylonian Tradition of Celestial Phenomena and Ptolemy's Fixed Star Calendar.

Chicago Style (17th ed.) Citation

Graßhoff, Gerd. The Babylonian Tradition of Celestial Phenomena and Ptolemy's Fixed Star Calendar. 1993.

MLA (8th ed.) Citation

Graßhoff, Gerd. The Babylonian Tradition of Celestial Phenomena and Ptolemy's Fixed Star Calendar. 1993.

Warning: These citations may not always be 100% accurate.