Einladung zur Generalversammlung am 9. Januar 1922, 8 Uhr
Published in Deutsche Entomologische Zeitschrift, in 1921, in volume 1921, issue 4, pages 305
Date published:1921
Published in Deutsche Entomologische Zeitschrift, in 1921, in volume 1921, issue 4, pages 305
Date published:1921