ΕπικεφαλίδαAckerman, Johan Christian χρησιμοποιείται σε: Common Library Network (GBV), Göttingen (Germany)
Ackermann, Johan Christian χρησιμοποιείται σε: Integrated Authority File (GND), Germany
ΠαραλλαγήAckermann, Joh. Chr.
Ackermann, Johann Christian
Ackermann, Johannes Christian
Johan Christian Ackermann (1738-1810), svensk trädgårdsarkitekt [Unknown authorUnknown author / Haga parkmuseum -- Public domain -- http://commons.wikimedia.org/wiki/File:Johan Christian Ackermann.jpg]