Seizaburō Satō, Ken'ichi Kōyama, Shunpei Kumon ; introduction by Edwin O. Reischauer ; translated by William R. CarterKodansha International/USA Ltd.1990
by Zenryū Tsukamoto ; translated from the Japanese by Leon HurvitzKodansha International : Distributed in the U.S. by Kodansha International/USA Ltd. through Harper & Row1985