1.

図書

図書
Egbert H. Walker ; with the assistance and collaboration of many Okinawan, Japanese, Chinese, and western botanists
出版情報: Washington, D.C. : Smithsonian Institution Press, 1976
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2.

図書

図書
by Jisaburo Ohwi ; edited by Frederick G. Meyer and Egbert H. Walke
出版情報: Washington, D.C. : Smithsonian Institution, 1965
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3.

図書

図書
by Egbert H. Walker
出版情報: Washington : American Institute of Biological Sciences, 1960
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4.

図書

図書
by Sakuya Sonohara, Shinjun Tawada and Tetsuo Amano ; edited by Egbert H. Walker
出版情報: [S.l.] : [s.n.], 1952
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