Itasaka, Gen
1922
Nihongo no "kotowaza" monoshiri jiten
Itasaka Gen no Amerika unchiku tantan
Kodansha Encyclopedia of Japan
Nihon o shiru
Ri ben ren sheng huo quan jie chu
"Amerika" ga wakareba "Nihon" ga miete kuru
Aa Amerika
Amerika nau ando zen =
Amerika o yomu
Amerika-ryu otoko no komon sensu
Amerika-ryū otoko no komon sensu
Chisei wa jama shinai