The covers show signs of wear and tear commensurate with age, but the pages are in relatively good condition. We have checked for any writing, but please forgive us if we have overlooked anything. m(_ _)m This book contains the exam questions, answers, and explanations for the Wastewater Treatment Technician exam (for the 2021 and 2022 fiscal years). Shipped via Yamato Transport / Nekopos. No claims and no returns accepted. Thank you for your understanding. "Equipment and Management, May 2022 Issue" Price: 1,650 yen (tax included) "Equipment and Management, May 2023 Issue" Price: 1,980 yen (tax included) #book #magazine #equipmentandmanagement #ohmsha #wastewatertreatmenttechnicianexam #wastewatertreatmenttechnician