Walter Zapp (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Walter Zapp" in English language version.

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minox.com (Global: low place; English: low place)

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president.ee (Global: 5,810th place; English: low place)

skorovs.lv (Global: low place; English: low place)

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  • Pēteris Skorovs (6 January 2014). "Minox Patents". Historical patents. Retrieved 24 February 2014.

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worldcat.org (Global: 5th place; English: 5th place)

search.worldcat.org

  • Apinis, Pēteris (2006). A Hundred Great Latvians. Riga: Nacionālais apgāds. p. 126. ISBN 978-9984-26-288-8. OCLC 238892134. Walter Zapp was born on 4 September 1905 in the family of a Riga merchant. His father was a British subject, but his mother was a Baltic German.