a Guide to Kuchiro Shitsugen - Hashimoto, Masao; Takashima, Yachiyo; Haryu, Tsutomu; Koyanagi, Keigo (Tokio Regional Promotion Committee for the Ramsar Conference in Kushiro, 1990)
Keywords: Fauna -- Kushiro; Plantas -- Kushiro; Humedales -- Kushiro; Insectos -- Kushiro