Ikeda, d., Inoue, Y. 1. C., Watson, B. C., & Inoue, Y. (1980). Letters of four seasons. Kodasha International.
Cita Chicago (17th ed.)Ikeda, daisaku, Yasushi 1907- Correspondence Inoue, Burton Correspondence Watson, i Yasushi Inoue. Letters of Four Seasons. Tokyo: Kodasha International, 1980.
Cita MLA (9th ed.)Ikeda, daisaku, et al. Letters of Four Seasons. Kodasha International, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.