ブルー・バックス

ブルー・バックスburuu・bakkusu

noun

  1. Blue Backs (series of books on the natural sciences published since 1963 by Kodansha)

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences