Купівля-продаж Аляски: відмінності між версіями

* [http://www.loc.gov/rr/program/bib/ourdocs/Alaska.html Treaty with Russia for the Purchase of Alaska and related resources at the Library of Congress] {{Webarchive|url=https://web.archive.org/web/20150329025653/http://www.loc.gov/rr/program/bib/ourdocs/Alaska.html |date=29 березня 2015 }}

* [http://www.bartleby.com/43/43.html Text of Treaty with Russia] {{Webarchive|url=https://web.archive.org/web/20081008020348/http://bartleby.com/43/43.html |date=8 жовтня 2008 }}

* [http://frontiers.loc.gov/intldl/mtfhtml/mfak/mfaksale.html Meeting of Frontiers, Library of Congress] {{Webarchive|url=https://web.archive.org/web/20081102075933/http://frontiers.loc.gov/intldl/mtfhtml/mfak/mfaksale.html |date=2 листопада 2008 }}

* [http://www.footnote.com/viewer.php?image=4346721 Original Document of Check to Purchase Alaska] {{Webarchive|url=https://web.archive.org/web/20080614045846/http://www.footnote.com/viewer.php?image=4346721 |date=14 червня 2008 }}

* [http://www.britannica.com/eb/article-9005366/Alaska-Purchase Britannica article] {{Webarchive|url=https://web.archive.org/web/20080820174219/http://www.britannica.com/eb/article-9005366/Alaska-Purchase |date=20 серпня 2008 }}