Used item. There may be some minor signs of use. Please refrain from purchasing if you are concerned about this. Thank you for viewing. This is a problem book specifically for the water quality section of the Pollution Control Manager Examination, with clear explanations of important points. - Title: Pollution Control Manager Examination Water Quality Section Strategy Problem Book - Edition: 2025-2026 Edition - Publisher: Ohmsha - Price: 3740 yen Thank you for viewing.