*Ueda City Museum. ''Historical Material relating to the Sanada Family'' (真田氏史料集) ''(Sanada-shi Shiryô-shû)'' Japan, 1983, 151 pages.
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*Ueda City Museum, ''Historical Material relating to the Sanada Family'' (真田氏史料集) ''(Sanada-shi Shiryô-shû),'' Japan, 1992, 151 pages.
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*Ueda City Museum, ''Ueda Castle'' (上田城),1988, 168 pages.
===Purchase Links===
===Purchase Links===
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The books can be purchaced through the museum at ¥1000 and ¥900. A list of the museum's books can be found at http://museum.umic.ueda.nagano.jp/hakubutsukan/gaiyou/sassi.html.
(Note the price given by the museum is about a 10th of that given by Amazon, but payment might be a problem for those living abroad. Interested people could ask the museum if it would allow payment by international postal order.)