A reference book containing questions and detailed explanations about hazardous materials. - Title: Class 1 Hazardous Materials Problem Collection - Author: Masataka Kudo - ISBN: 9784770329172 - Edition: Revised 4th Edition - Publisher: Kobunsha - Contents: Questions and explanations about hazardous materials - Price: List price 2800 yen Only for those who can judge from the photos. Please only purchase if you agree to the item being sold as is, as a used item. Immediate purchase is OK. No claims and no returns accepted.