Sugihara, S., & Serizawa, C. (1957). Shell mounds of the earlist Jōmon culture at Natsushima, Kanagawa Prefecture, Japan. Meiji University.
Lua i Stíl Chicago (17ú heag.)Sugihara, Sōsuke, agus Chōsuke Serizawa. Shell Mounds of the Earlist Jōmon Culture at Natsushima, Kanagawa Prefecture, Japan. Tokyo: Meiji University, 1957.
Lua MLA (9ú heag.)Sugihara, Sōsuke, agus Chōsuke Serizawa. Shell Mounds of the Earlist Jōmon Culture at Natsushima, Kanagawa Prefecture, Japan. Meiji University, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.