DescriptionLibrary Journal 1919 vol 44.pdf English: Library Journal 1919 vol 44 Date 1919 Source https://archive.org/details/libraryjournal44ameruoft Author...
Leopoldina Volume series 1: issue 55 – annual vol. 1919 [Reihe 1: LV./Fünfundfünfzigstes Heft. – Jahrgang 1919.] Publisher Halle: (Kaiserliche) Leopoldinisch-Carolinische...
Naturforscher. Series title Leopoldina Volume series 1: issue 56 – annual vol. 1920 [Reihe 1: LVI./Sechsundfünfzigstes Heft. – Jahrgang 1920.] Publisher...
Archive Internet Archive ID: philosophicaltra218roya described at URL: https://archive.org/download/philosophicaltra218roya/philosophicaltra218roya.pdf...
Internet Archive ID: novitateszoolog311924roth described at URL: https://archive.org/download/novitateszoolog311924roth/novitateszoolog311924roth.pdf...
Archive Internet Archive ID: philosophicaltra221roya described at URL: https://archive.org/download/philosophicaltra221roya/philosophicaltra221roya.pdf...
DescriptionLibrary Journal vol 47 1922.pdf English: Library Journal vol 47 1922 Date 1922 Source https://archive.org/stream/libraryjournal47ameruoft#page/n5...
Internet Archive ID: zoologicalrecor561919zool described at URL: https://archive.org/download/zoologicalrecor561919zool/zoologicalrecor561919zool.pdf...
Naturforscher. Series title Leopoldina Volume series 1: issue 51 – annual vol. 1915 [Reihe 1: LI./Einundfünfzigstes Heft. – Jahrgang 1915.] Publisher Halle:...
Naturforscher. Series title Leopoldina Volume series 1: issue 50 – annual vol. 1914 [Reihe 1: L./Fünfzigstes Heft. – Jahrgang 1914.] Publisher Halle: Kaiserliche...