Tsuda, S. (1970). An inquiry into the Japanese mind as mirrored in literature: The flowering period of common people literature. [Tokyo]: Apan Society for the Promotion of Science.

Tsuda, Sōkichi. An Inquiry Into the Japanese Mind As Mirrored in Literature: The Flowering Period of Common People Literature. [Tokyo]: Apan Society for the Promotion of Science, 1970.

Tsuda, Sōkichi. An Inquiry Into the Japanese Mind As Mirrored in Literature: The Flowering Period of Common People Literature. [Tokyo]: Apan Society for the Promotion of Science, 1970.