Thorough Explanation: Royal English Grammar Revised New Edition Obunsha Price: 1800 yen + tax Yo Watanuki Revised and Author Yukihisa Miyakawa, Taketoshi Sugai, Takahiro Takamatsu Co-authors Mark Petersen English Proofreading Almost unused, in excellent condition. No writing inside. For those who understand home storage, thank you for considering.