van der Spek, R. (1993). The Astronomical Diaries as a Source for Achaemenid and Seleucid History.
Chicago Style (17th ed.) Citationvan der Spek, R.J. The Astronomical Diaries as a Source for Achaemenid and Seleucid History. 1993.
MLA (8th ed.) Citationvan der Spek, R.J. The Astronomical Diaries as a Source for Achaemenid and Seleucid History. 1993.
Warning: These citations may not always be 100% accurate.