search materials(including e-books and e-journals) held by Hokkaido university.
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search NDL(National Diet Library) online, NDL Digitized Contents and "Aozora Bunko", materials of a Japanese digital library.
Search keyword：(Subject: #Ozaki Masutarō 1900-)
Sensei and his people : the building of a Japanese commune / Yoshie Sugihara and David W. Plath
Berkeley : University of California Press , 1969