Issues for -2017 called volume and issue instead of Band and Heft
Some numbers combined
Notes
German, English, and French; summaries in German and English
Issuing Body
Organ of the Verband Deutscher Zoodirektoren and the World Zoo Organisation, <1999->; of the Verband der Zoologischen Gärten and the World Association of Zoos and Aquariums, -2017
Notes
Description based on: N.F., 1. Band, Heft 3/4 (Okt. 1928); title from cover