Ferdinand von Richthofen (English Wikipedia)
Analysis of information sources in references of the Wikipedia article "Ferdinand von Richthofen" in English language version.
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English rank
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books.google.com
- edited by Randy Jacobs, with Robert M. Ormes. (2000). Guide to the Colorado mountains. Golden, Colo: Colorado Mountain Club Press. p. 50. ISBN 978-0-9671466-0-7.
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hathitrust.org
babel.hathitrust.org
- See:
- Richthofen, Ferdinand von (1877). "Über die zentralasiatischen Seidenstrassen bis zum 2. Jh. n. Chr" [On the Central Asian Silk Roads until the 2nd century A.D.]. Verhandlungen der Gesellschaft für Erdkunde zu Berlin (in German). 4: 96–122.
wikisource.org
en.wikisource.org
- One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Richthofen, Ferdinand". Encyclopædia Britannica. Vol. 23 (11th ed.). Cambridge University Press. p. 314.
