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1Published 1996Table of Contents: “... : The Hamburg Zoological garden and Carl Hagenbeck's Tierpark -- Zoos and Aquariums of Berlin -- A paradox...”
Conference Proceeding Book -
2Published 1980“...Symposia of the National Zoological Park....”
Conference Proceeding Book -
3Published 1977“...Symposia of the National Zoological Park....”
Conference Proceeding Book