APA (7e ed.) Bronvermelding

Ikeda, D., & Inoue, Y. (1980). Letters of four seasons. Kodansha.

Chicago (17e ed.) Bronvermelding

Ikeda, Daisaku, en Yasushi Inoue. Letters of Four Seasons. Tokio: Kodansha, 1980.

MLA (9e ed.) Bronvermelding

Ikeda, Daisaku, en Yasushi Inoue. Letters of Four Seasons. Kodansha, 1980.