APA Style

Bothmer, Volker, Abdel Hady, Ahmed. (2006). Solar activity and its magnetic origin : proceedings of the 233rd symposium of the International Astronomical Union held in Cairo, Egypt, March 31 - April 4, 2006. . Cambridge, UK: International Astronomical Union.

Chicago Style

Bothmer, Volker, Abdel Hady, Ahmed. Solar activity and its magnetic origin : proceedings of the 233rd symposium of the International Astronomical Union held in Cairo, Egypt, March 31 - April 4, 2006.. Cambridge, UK: International Astronomical Union, 2006. Government Publication.

MLA Style

Bothmer, Volker, Abdel Hady, Ahmed. Solar activity and its magnetic origin : proceedings of the 233rd symposium of the International Astronomical Union held in Cairo, Egypt, March 31 - April 4, 2006.. Cambridge, UK: International Astronomical Union, 2006. Government Publication.

Turabian Style

Bothmer, Volker, Abdel Hady, Ahmed. Solar activity and its magnetic origin : proceedings of the 233rd symposium of the International Astronomical Union held in Cairo, Egypt, March 31 - April 4, 2006.. Cambridge, UK: International Astronomical Union, 2006. Government Publication.