Text in English, with instructions in English, French, and German; indexes in English and French.
Imprint varies: München : K.G. Saur, <2000/2001-> Latest issue consulted: Ed. 42 (2005/2006). Published in 3 vols. 1983-1996/1997; 4 vols. 1997/1998- ; 5 vols. <2001/2002-> Each volume 1983-<1986> carries its own edition statement. Vols. 2 and 3 for 1985/86- called 3rd ed.- Accompanied by supplemental CD-ROM, 2000/2001- Vols. for 15th-16/18th editions issued also in French under title: Annuaire des organisations internationales. Complemented by: International association statutes series, 1988-
Acquired for the Penn Libraries with assistance from the Alumni and Friends Memorial Book Fund.