search materials(including e-books and e-journals) held by Hokkaido university.
search materials held by universities in Japan.
search information on academic articles published in Japan.
search NDL(National Diet Library) online, NDL Digitized Contents and "Aozora Bunko", materials of a Japanese digital library.
Search keyword：(Subject: #15th)
Justice and jurisprudence : an inquiry concerning the Constitutional limitations of the Thirteenth, Fourteenth and Fifteenth amendments
New York : Negro Universities Press , 
Conscience and the Constitution : history, theory, and law of the Reconstruction amendments / David A.J. Richards
Princeton, N.J. : Princeton University Press , c1993