COP .357 Derringer (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "COP .357 Derringer" in English language version.

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archive.org

Ahern, Jerry (5 October 2010). Gun Digest Buyer's Guide to Concealed-Carry Handguns. Iola, Wisconsin: Gun Digest Books. pp. 129–132. ISBN 978-1-4402-1743-2.

espacenet.com

worldwide.espacenet.com

Original document:US4407085 (A) ― 1983-10-04 espacenet