The Earth and the universe :
a festschrift in honour of Hans-Jürgen Tredor /
Wilfried Schröder, editor.
APA Citation
Schröder, W., Treder, H. Jürgen. (1993). The Earth and the universe: a festschrift in honour of Hans-Jürgen Tredor. Bremen-Rönnebeck, Germany: Interdivisional Commission on History of the International Association of Geomagnetism and Aeronomy (IAGA).
MLA Citation
Schröder, Wilfried, and Hans Jürgen Treder. The Earth And the Universe: a Festschrift In Honour of Hans-Jürgen Tredor. Bremen-Rönnebeck, Germany: Interdivisional Commission on History of the International Association of Geomagnetism and Aeronomy (IAGA), 1993.
Warning: These citations may not always be complete (especially for serials).